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Note: This page contains sample records for the topic "overhead distribution lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


1

Overhead Line Worker Practices Survey: 2012  

Science Conference Proceedings (OSTI)

The Electric Power Research Institute (EPRI) has undertaken a multiyear research project to identify and describe leading industry overhead line worker practices. This effort is intended to identify and document industry overhead distribution line work practices of note, identify shortterm products (such as practices guidelines) that EPRI can ...

2012-08-23T23:59:59.000Z

2

Overhead Distribution Vegetation Challenges  

Science Conference Proceedings (OSTI)

It is not uncommon for overhead distribution conductors to make contact with trees. While these incidental contacts can be either intermittent or relatively persistent, they are typically not detectable by overcurrent protection systems and do not result in interruptions on distribution circuits. This report focuses on the levels of fault currents and voltage gradients found along the fault pathway provided by trees from point of contact to earth. The purpose of this investigation was to measure the volt...

2008-12-18T23:59:59.000Z

3

Optimizing the replacement of overhead lines in rural distribution systems with respect to reliability and customer value  

E-Print Network (OSTI)

In this paper we present a method for establishing the value of a networks components from a reliability worth perspective. The method can be applied to a general distribution system i.e. both for radial and meshed network systems. Moreover, this paper shows results from an application study for a rural network system that is dominated by overhead lines. The purpose of the study was to establish the value of a secondary feeding point. Further, the method is used to establish the best replacement strategy for the concerned overhead lines.

Patrik Hilber; Bengt Hllgren; Lina Bertling

2005-01-01T23:59:59.000Z

4

IPF Overhead Line Uprating Wizard  

Science Conference Proceedings (OSTI)

The Increased Power Flow (IPF) Wizard ranks various line uprating methods available on the basis of a series of relatively simple questions about the rating increase needed, the condition of the line, regulatory restrictions, and basic design parameters of the existing line. The Wizards knowledge base contains 17 different uprating methods selected and defined by the contractors. A series of 22 questions concerning such variables as line rating assumptions, physical condition, and permitting were define...

2009-03-17T23:59:59.000Z

5

HVDC Overhead Line Performance Study  

Science Conference Proceedings (OSTI)

The Electric Power Research Institute (EPRI) is documenting the various factors that should be considered when designing and building new high-voltage direct current (HVDC) lines or when converting AC lines to HVDC. Given the limited number of HVDC lines that have been designed and built around the world, even some basic factors (for example, insulator flashover in severely contaminated regions) are not completely understood. This report concerns a crucial first step in better understanding and improving...

2011-08-02T23:59:59.000Z

6

Overhead Transmission Line Inspector Workshop Proceedings - 2012  

Science Conference Proceedings (OSTI)

This report presents the proceedings of the Electric Power Research Institute (EPRI) Overhead Transmission Line Inspector Workshop, which was held Monday, July 30, through Wednesday, August 1, 2012, at the Hyatt Place Hotel and at Georgia Powers Klondike Training Center in Lithonia, Georgia.The first half day of the workshop focused on inspection and assessment, with a participant roundtable discussion, followed by utility, vendor and EPRI presentations on the ...

2012-11-14T23:59:59.000Z

7

Reducing memory sharing overheads in distributed JVMs  

Science Conference Proceedings (OSTI)

Distributed JVM systems by supporting Javas shared-memory model enable concurrent Java applications to run transparently on clusters of computers. Aiming to reduce the overheads associated to memory coherence enforcement mechanisms required in ... Keywords: JVM, Java, cluster computing, concurrent Java applications, distributed shared memory, high-performance computing

Marcelo Lobosco; Orlando Loques; Claudio L. de Amorim

2005-09-01T23:59:59.000Z

8

Optimal Design of Overhead Distribution Systems  

Science Conference Proceedings (OSTI)

It is not uncommon for overhead distribution conductors to make contact with trees. These incidental contacts can be either intermittent or relatively persistent, are typically not detectable by overcurrent protection systems, and typically do not result in interruptions on distributions circuits. This project focuses on assessing voltage gradients and fault currents created when trees come into contact with distribution conductors, allowing current to flow through the tree from point of contact to earth...

2007-12-19T23:59:59.000Z

9

Bimetallic steel/aluminum wire for overhead telecommunication lines  

Science Conference Proceedings (OSTI)

for power transmission and overhead telecommunication lines and other .... " Method of manufacture of bimetallic wire for, e.g., trolley-bus cable or rods, n Inven-.

10

Future Inspection of Overhead Transmission Lines  

Science Conference Proceedings (OSTI)

This report documents scenarios and technologies that can be applied in the future for the inspection of transmission lines. Scenarios describe the utilization of a range of concepts, including distributed sensors, unmanned airborne vehicles, RF communication, and robotics. An approach to performing demonstration projects using currently available technologies is provided and will be implemented in the following phases of the project.

2008-06-23T23:59:59.000Z

11

Emerging and Future Inspection of Overhead Transmission Lines  

Science Conference Proceedings (OSTI)

This technical update report describes research by the Electric Power Research Institute (EPRI) into emerging and future overhead electric transmission line inspection and assessment technologies. In 2008, EPRI published a report entitled Future Inspection of Overhead Transmission Lines (product 1016921) that documented scenarios and viable technologies that could be applied for the inspection of transmission lines over a multi-decade timeframe. That document was intended to provide a roadmap for near- a...

2011-12-22T23:59:59.000Z

12

Guide for Selection of Overhead Line Components and Design Parameters  

Science Conference Proceedings (OSTI)

This report outlines the contents for the Electric Power Research Institute (EPRI) report Guide for Selection of Overhead Line Components and Design Parameters that is to be developed under the Design and ConstructionApproach and Practice project. It identifies the topics to be covered and the scope to be developed for each topic. New topics will be added to the list whenever such needs arise. Detailed information suitable for use in the design of overhead lines on a few topics will be ...

2012-12-31T23:59:59.000Z

13

Nondestructive Testing of Overhead Transmission Lines: Numerical and Experimental Investigation  

E-Print Network (OSTI)

Overhead transmission lines are periodically inspected using both on-ground and helicopter-aided visual inspection. Factors including sun glare, cloud cover, close proximity to power lines and the rapidly changing visual circumstances make airborne inspection of power lines a particularly hazardous task. In this research, a finite element model is developed that can be used to create the theoretical dispersion curves of an overhead transmission line. The complex geometry of the overhead transmission line is the primary reason for absence of a theoretical solution to get the analytical dispersion curves. The numerical results are then verified with experimental tests using a non-contact and broadband laser detection technique. The methodology developed in this study can be further extended to a continuous monitoring system and be applied to other cable monitoring applications, such as bridge cable monitoring, which would otherwise put human inspectors at risk.

Kulkarni, Salil Subhash

2009-12-01T23:59:59.000Z

14

Overhead Transmission Line Lightning and Grounding Reference Book 2012  

Science Conference Proceedings (OSTI)

In North America and many other parts of the world, lightning remains the primary cause of transmission line outages, momentary interruptions, and reliability and maintenance problems. The lightning performance of transmission lines may be improved by applying overhead ground wires, providing a low impedance connection to ground, and selecting appropriate insulation levels for the phase conductors. The success of these measures is not always ...

2012-12-12T23:59:59.000Z

15

Overhead Line Loading Program (OHLOAD) Version 2.0  

Science Conference Proceedings (OSTI)

OHLOAD allows the user to calculate thermal ratings and conductor temperatures for overhead power transmission lines. EPRI's Overhead Line Loading Program (OHLOAD 2.0) calculates bare conductor temperatures and thermal ratings based on user-specified weather parameters and user-specified electrical load. The calculation methods available in OHLOAD are based on various CIGRE, IEEE, and EPRI documents. WindowsXP, Vista, and Windows 7. The PC must have at least 20 MB of free disk space and a Pentium II proc...

2012-05-01T23:59:59.000Z

16

Thermal Models of Overhead Transmission Lines Operating at High Temperatures  

Science Conference Proceedings (OSTI)

Bare stranded overhead transmission line conductorsreferred to as aluminum conductor steel reinforced ACSRtypically consist of at least two layers of aluminum strands, helically stranded around a core consisting of steel wires. The current that flows through such conductors is located predominantly in the aluminum layers while the steel core provides mechanical strength and limits sag at high temperature. The lack of new line construction combined with the decoupling of transmission from power generatio...

2010-12-23T23:59:59.000Z

17

HVDC Overhead Line Design Guide: 2013 Interim Report  

Science Conference Proceedings (OSTI)

This report is an updated version of the Electric Power Research Institute (EPRI) report HVDC Overhead Line Design Guide (1024326). An outline developed in 2012 identified all of the topics to be covered by the report. A draft for high-voltage, direct-current (HVDC) ground electrodes and another for HVDC conductor selection were also included in the 2012 version. These topics were finalized in 2013, and the topics of HVDC line performance and insulation were added to the report. All four ...

2013-12-23T23:59:59.000Z

18

Guide for High Temperature Operation of Overhead Lines: 2012 Updates  

Science Conference Proceedings (OSTI)

This Guide assists users in raising the capacities of overhead transmission lines by increasing the conductor temperature. It is based on a wealth of knowledge accumulated from extensive research conducted internally at the Electric Power Research Institute (EPRI), information from manufacturers, and results from research conducted outside of EPRI. The Guide has evolved from a collection of numerous EPRI reports published in the past, including Effect of High-Temperature Cycling on Conductor ...

2012-12-12T23:59:59.000Z

19

Guide for Operating Overhead Lines at High Temperatures  

Science Conference Proceedings (OSTI)

This Guide assists users in raising the capacities of overhead transmission lines by increasing the conductor temperature. It is based on a wealth of knowledge accumulated from extensive research conducted internally at the Electric Power Research Institute (EPRI), information from manufacturers, and results from research conducted outside of EPRI. The Guide evolved from a collection of numerous EPRI reports published in the past, for example, Effect of High-Temperature Cycling on Conductor Systems (EPRI...

2010-12-13T23:59:59.000Z

20

Overhead Transmission Line Inspection - Online Training (OTLOT) Version 9.0  

Science Conference Proceedings (OSTI)

The EPRI Overhead Transmission Line Inspection - Online Training is a CD-based application for training on how to complete overhead transmission line inspections.It contains fourteen modules of instruction on overhead transmission line inspections. A browser interface helps the user navigate through the interactive training. As the user moves through the module, it provides instruction, application practice, and review questions.Benefits & ...

2013-12-16T23:59:59.000Z

Note: This page contains sample records for the topic "overhead distribution lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

PRE-SW EPRI Overhead Transmission Line Inspection - Online Training (OTLOT) Version 9.0, Beta  

Science Conference Proceedings (OSTI)

The EPRI Overhead Transmission Line Inspection - Online Training is a CD-based application for training on how to complete overhead transmission line inspections.Itcontains fourteen modules of instruction on overhead transmission line inspections. A browser interface helps the user navigate through the interactive training. As the user moves through the module, it provides instruction, application practice, and review questions.Benefits ...

2013-08-25T23:59:59.000Z

22

Overhead reduction in a distributed path management system  

Science Conference Proceedings (OSTI)

CEAS (cross entropy ant system) is a distributed, robust and adaptive swarm intelligence system for path management in communication networks. This paper focuses on strategies for handling the overhead in terms of processing cycles, memory storage, and ... Keywords: Cross entropy, Path management, Swarm intelligence

Poul E. Heegaard; Otto J. Wittner

2010-04-01T23:59:59.000Z

23

Life-Cycle Cost Analysis Overhead Transmission Lines (LCCA) Version 1.1  

Science Conference Proceedings (OSTI)

The LCCA software is a tool to assist transmission line designers in selecting the optimized design for an overhead line by comparing the life-cycle cost of various design options. Windows2000, XP, and Vista Excel 2003 and 2007

2011-12-15T23:59:59.000Z

24

Live Working Considerations in Design and Construction of Overhead Transmission Lines  

Science Conference Proceedings (OSTI)

Live working (LW) on overhead transmission lines is the performance of maintenance, construction, and inspection of equipment and circuits that are energized or that may become energized. This report discusses aspects of design and construction of overhead transmission lines that are important to (LW) and examines design modifications that can significantly impact the safe, efficient, and cost-effective performance of LW. This guidance should help line designers identify ways to incorporate the ...

2013-12-02T23:59:59.000Z

25

Assessment of Environmental Effects of Current Underground and Overhead Transmission Line Construction and Maintenance in the United States  

Science Conference Proceedings (OSTI)

This report assesses environmental effects of current underground and overhead transmission line construction and maintenance in the United States.

2008-12-18T23:59:59.000Z

26

Dynamic Simulation of Lightning Attachment to Earthed Overhead Transmission Line Structures  

Science Conference Proceedings (OSTI)

In this paper a novel method is presented to investigate lightning stroke attachment to earthed overhead transmission line structures. This method is based on the dynamic simulation of lightning downward leader movement toward the ground in three dimensions. ... Keywords: charge simulation method, downward leader, lightning, transmission line, upward leader

Mohammad Reza Bank Tavakoli; Behrooz Vahidi

2010-07-01T23:59:59.000Z

27

EPRI-GTC Overhead Electric Transmission Line Siting Methodology  

Science Conference Proceedings (OSTI)

This report explains and documents a standardized process that utilities could use to improve the way transmission line routes are evaluated and selected.

2006-02-06T23:59:59.000Z

28

Proceedings of the Inspection and Assessment of Overhead Transmission Line Equipment Workshop: 13 15 May 2003, Monterey, CA  

Science Conference Proceedings (OSTI)

This report contains papers and materials presented at the Inspection and Assessment of Overhead Transmission Line Equipment Workshop held in Monterey, California in May of 2003.

2003-12-15T23:59:59.000Z

29

Interaction Between AM Radio Broadcast Antennas and Overhead Power Lines  

Science Conference Proceedings (OSTI)

Metallic structures, power lines or otherwise, can affect the operation of AM radio broadcast station antennas if the dimensions of those structures are related to the wavelength of the radio signal at the station's operating frequency. For power lines, the dimensions of interest can be either the height of the support structures themselves or the length of a loop formed by adjacent structures, the shield wires connecting them, and the return path in the earth. When resonance occurs between the power lin...

2012-05-10T23:59:59.000Z

30

Evaluation of Instrumentation and Dynamic Thermal Ratings for Overhead Lines  

Science Conference Proceedings (OSTI)

In 2010, a project was initiated through a partnership between the Department of Energy (DOE) and the New York Power Authority (NYPA) to evaluate EPRI?s rating technology and instrumentation that can be used to monitor the thermal states of transmission lines and provide the required real-time data for real-time rating calculations. The project included the installation and maintenance of various instruments at three 230 kV line sites in northern New York. The instruments were monitored, and data collection and rating calculations were performed for about a three year period.

Phillips, A.

2013-01-31T23:59:59.000Z

31

EPRI Overhead Transmission Line Inspection - Online Training (OTLOT) Version 8.0  

Science Conference Proceedings (OSTI)

This course describes the different types of compression connectors for overhead transmission lines and their application, construction, degradation and failure modes, inspection and assessment methods, and remediation techniques.Benefits & Value:Proper Construction and Installation of Compression Connectors will allow for the following:Self-paced learning opportunityReduced cost of travel and time outside the ...

2012-11-13T23:59:59.000Z

32

Thermal and Corona Models of Overhead Transmission Lines Operating at High Temperatures  

Science Conference Proceedings (OSTI)

In an attempt to meet increasing demand by pushing more power through existing lines, the power industry has frequently resorted to operating overhead transmission lines at higher temperatures than ever before. There is reason to believe that the empirical models developed in the past for determining conductor temperature and corona performance are in error at these elevated temperatures. In an effort to safely and reliably push more power, it will be important for utilities to understand the temperature...

2007-12-11T23:59:59.000Z

33

Electrical and mechanical design criteria for EHV and UHV: overhead transmission lines  

Science Conference Proceedings (OSTI)

The results are presented of a program devoted to the selection of electrical and mechanical design criteria and parameters for overhead power transmission lines for ac systems rated at from 345 to 1100 kV and for dc systems rated at from 600 to 1200 kV. Information is included on the environmental effects, i.e., audible noise and electric fields, of the lines, mechanical and economic requirements, safety, failures, grounding, and lightning protection. (LCL)

Not Available

1980-06-01T23:59:59.000Z

34

Survey of Utility Practices for Rating Overhead Transmission Line and Component Condition: Survey Results  

Science Conference Proceedings (OSTI)

Utilities have expressed an interest in using analytical tools and methods for evaluating the condition of their overhead transmission facilities and line components. These analytical techniques are intended to provide a systematic approach to ensure that planned expenditures for inspection and maintenance programs are being applied in the most cost-effective way that benefits the organization and public as a whole. Prescriptive or time-based methods used by the utilities for many years might not be ...

2013-12-22T23:59:59.000Z

35

Proceedings of the First Overhead Transmission Line Equipment and Maintenance Practices Conference: 14-16 May 2002, Monterey, CA  

Science Conference Proceedings (OSTI)

This report contains the presentation material and papers from the 1st Overhead Transmission Line Equipment and Maintenance Practices Conference held in Monterey, California, May 14-16, 2002.

2002-07-29T23:59:59.000Z

36

Inspection and Assessment of Overhead Transmission Line Hardware, Conductors and Shield Wires: Technology Overview of Conductor Inspection Tools  

Science Conference Proceedings (OSTI)

This report summarizes in detail the theory and operation of technologies for the inspection of overhead transmission line conductors and evaluates their effectiveness. It covers existing technologies and technologies that are commercially available but have the promise of becoming effective screening and, in some cases, predictive tools in the future. Technologies described and assessed include:The Cormon overhead line corrosion detectorThe Cross-Checker ...

2013-12-22T23:59:59.000Z

37

The Reliability Investigation on ACSR Splice Connector Systems Used in Overhead Power transmission Lines  

SciTech Connect

Due to material discontinuity and inherited forming mechanism from a crimped-type splice connector, the associated conductor-connector system is highly sensitive to system components aging, especially during high-temperature operations. Furthermore, due to the increase in power demand and limited investment in new infrastructure, existing overhead power transmission lines often need to operate at temperatures higher than the original designed values. This has led to the accelerated aging and degradation of conductor-connector systems. The implications of connector aging are two-fold: (1) significant increase in resistivity of the splice connector and (2) significant reduction in the connector clamping strength. Therefore, splice connectors are one of the weakest links in the electric power transmission infrastructure. In this paper we will discuss the reliability of splice connector systems, including both single stage and two stage splice connectors, used in ACSR conductor of transmission lines under high temperature operations.

Wang, Jy-An John [ORNL; Jiang, Hao [ORNL; Ren, Fei [ORNL

2012-01-01T23:59:59.000Z

38

Proposed Norton-Tesuque 115 kV overhead transmission line and substation in Sante Fe, New Mexico  

SciTech Connect

Construction is proposed of a 115/12.5-kilovolt (kV), 10/12.5-megavolt-ampere (MVA) substation in the Tesuque area and of 9.02 miles of 115-kV overhead transmission line from the Norton Station to the new substation in an area approximately three miles north of Sante Fe, New Mexico. The project would involve the granting of a 100-foot width right-of-way by the Tesuque Pueblo, the construction of the substation on the Tesuque Pueblo Indian Reservation between the Rio Tesuque and New Mexico 85, the addition of a 115-kV breaker bay at Norton Station, and the installation of two underground 12.47-kV distribution feeders to connect to existing ones in the Tesuque area. In addition, the station would be designed to accommodate one future underground 12.47-kV feeder that would terminate at a future distribution line in the Tesuque area. The preferred transmission line route would originate at the Norton Station and proceed east-northeast up Calabasa Arroyo to a point approximately 1.1 miles north of the southwest corner of the Tesuque Pueblo boundary. From this point the route would proceed east to the proposed substation site.

1985-06-01T23:59:59.000Z

39

Overhead Lineworker Practices: Lincoln Electric System  

Science Conference Proceedings (OSTI)

This report describes the findings of an overhead distribution line worker practices immersion conducted by the Electric Power Research Institute (EPRI) with the Lincoln Electric System (LES). The immersion was conducted as part of a multiyear effort by EPRI to identify noteworthy line worker practices related to the management of overhead distribution systems. More specifically, this report profiles the practices (the people, processes, and technology) in place at LES, a Lincoln, Nebraskabased utility. ...

2011-12-21T23:59:59.000Z

40

Mutual Design Considerations for Overhead AC Transmission Lines and Gas Transmission Pipelines, Volume 1: Engineering Analysis  

Science Conference Proceedings (OSTI)

This reference book presents data on an investigation into the mutual effects of electric power transmission lines and natural gas transmission pipelines sharing rights-of-way. Information is useful to both power and pipeline industry users.

1978-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "overhead distribution lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Field Guide: Construction and Inspection of Compression Connectors for Overhead Transmission Lines  

Science Conference Proceedings (OSTI)

This field guide provides a general, field-deployable resource for utility professionals who are engaged in the construction and installation of compression connectors, as well as those who are involved with in-service inspection and assessment of this line component. It describes typical applications, compression connector basics, construction methods, common assembly errors, and inspection methods. In addition, it provides a list of relevant technical and training resources.The ...

2013-08-15T23:59:59.000Z

42

Thermal and Corona Models of Overhead Transmission Lines Operating at High Temperatures  

Science Conference Proceedings (OSTI)

In order to provide electric power to a society that is continuously increasing its power consumption, without having to sustain huge capital expenditures for new infrastructure, the power industry is pushing more power through existing lines. Although this results in conductors operating at higher temperatures, which in turn results in higher thermal and mechanical losses, the industry is finding it to be a cost-effective approach when compared to alternatives. The demand for electric power over transmi...

2008-12-23T23:59:59.000Z

43

Overhead electric power transmission line jumpering system for bundles of five or more subconductors  

DOE Patents (OSTI)

Jumpering of electric power transmission lines at a dead end tower. Two transmission line conductor bundles each contain five or more spaced apart subconductors (5) arranged in the shape of a cylinder having a circular cross section. The ends of each bundle of subconductors are attached with insulators to a dead end tower (1). Jumpering allows the electric current to flow between the two bundles of subconductors using jumper buses, internal jumper conductors, and external jumper conductors. One or more current collecting jumper buses (37) are located inside each bundle of subconductors with each jumper bus being attached to the end of a subconductor. Small-diameter internal jumper conductors (33) are located in the inherently electrically shielded area inside each bundle of subconductors with each subconductor (except ones having an attached jumper bus) having one internal jumper conductor connected between that subconductor's end and a jumper bus. Large-diameter external jumper conductors (9) are located outside each bundle of subconductors with one or more external jumper conductors being connected between the jumper buses in one bundle of subconductors and the jumper buses in the other bundle.

Winkelman, Paul F. (Beaverton, OR)

1982-01-01T23:59:59.000Z

44

New Construction of Distribution Lines, Service Lines, and Appurtenant...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Resources Outside Residential Subdivisions (New York) New Construction of Distribution Lines, Service Lines, and Appurtenant Facilities in Certain Visually Significant...

45

New Construction of Distribution Lines, Service Lines, and Appurtenant  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

New Construction of Distribution Lines, Service Lines, and New Construction of Distribution Lines, Service Lines, and Appurtenant Facilities in Certain Visually Significant Resources Outside Residential Subdivisions (New York) New Construction of Distribution Lines, Service Lines, and Appurtenant Facilities in Certain Visually Significant Resources Outside Residential Subdivisions (New York) < Back Eligibility Investor-Owned Utility Municipal/Public Utility Rural Electric Cooperative Utility Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Water Home Weatherization Solar Wind Program Info State New York Program Type Environmental Regulations Provider New York State Public Service Commission Any proposed construction of distribution lines, service lines, and appurtenant facilities to electric utilities located near scenic areas of

46

New Construction of Distribution Lines, Service Lines, and Appurtenant  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Construction of Distribution Lines, Service Lines, and Construction of Distribution Lines, Service Lines, and Appurtenant Facilities in Residential Subdivisions (New York) New Construction of Distribution Lines, Service Lines, and Appurtenant Facilities in Residential Subdivisions (New York) < Back Eligibility Commercial Installer/Contractor Institutional Investor-Owned Utility Low-Income Residential Multi-Family Residential Municipal/Public Utility Residential Rural Electric Cooperative Schools Utility Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Home Weatherization Water Buying & Making Electricity Solar Wind Program Info State New York Program Type Siting and Permitting Provider New York State Public Service Commission Any proposed construction of electricity-related facilities in residential

47

Determination of High-Frequency Current Distribution Using EMTP-Based Transmission Line Models with Resulting Radiated Electromagnetic Fields  

SciTech Connect

Application of BPL technologies to existing overhead high-voltage power lines would benefit greatly from improved simulation tools capable of predicting performance - such as the electromagnetic fields radiated from such lines. Existing EMTP-based frequency-dependent line models are attractive since their parameters are derived from physical design dimensions which are easily obtained. However, to calculate the radiated electromagnetic fields, detailed current distributions need to be determined. This paper presents a method of using EMTP line models to determine the current distribution on the lines, as well as a technique for using these current distributions to determine the radiated electromagnetic fields.

Mork, B; Nelson, R; Kirkendall, B; Stenvig, N

2009-11-30T23:59:59.000Z

48

HVDC Overhead Transmission Guide  

Science Conference Proceedings (OSTI)

This report is the initial version of a new EPRI publication, the HVDC Overhead Line Design Guide. The main objective of the report is to present a proposed outline for the guide so that users can review and discuss the content. The outline will then be fine-tuned with users to meet their needs. Topics unique to high-voltage direct current (HVDC) systems have been identified and included in the outline. The topics will be addressed and design information added each year. The ultimate goal ...

2012-12-12T23:59:59.000Z

49

Field Guide: Daytime Discharge Inspection of Transmission and Distribution Overhead Lines and Substations Guide with Video  

Science Conference Proceedings (OSTI)

This EPRI visual guide, one of a series of field guides designed to support inspection and assessment of transmission components, is devoted to the subject of daytime discharge inspection. Although technology for viewing corona and arcing discharges during the day has been available for a number of years, it can be rather difficult to interpret the images produced by this technology. This systematically organized document was prepared to help overcome some of these difficulties. It is intended for ...

2013-01-31T23:59:59.000Z

50

Magnetic field exposure assessment for adult residents of Maine who live near and far away from overhead transmission lines  

Science Conference Proceedings (OSTI)

Sixty-Hz magnetic field exposures were measured for 45 adult residents of Maine. Thirty of the subjects resided near rights-of-way (ROWs) with either 345- and 115-kV transmission lines, or ROWs with only 115-kV transmission lines; fifteen resided far from any transmission lines. Personal exposure data for a single 24-hour period was acquired with the EMDEX. The EMDEX's event-marker button was used to partition exposures into Home and Away components. Also, three area measurements were taken for each subject during the personal exposure measurement period: (1) 24-hr fixed-site bedroom measurement with a second EMDEX; (2) Spot measurements in at least three rooms of every residence; and (3) Spot measurements outside each residence. Residence near transmission lines highly loaded during the measurement period was associated with increased Home and Total exposure relative to a far-away population. Average exposure level while away from home was uniform (at about 2 mG) throughout the study population. On a quantitative level, Home exposure was correlated equivalently with Spot-In (r = .70) and the 24-hr fixed site measurement (r = .68). Correlations of area measurements with Total exposure were weaker because of the dilution effect of Away exposure (r = .64 for Spot-In; r = .61 for 24-h Bedroom). Away and Home exposures were not correlated (r = .14), which reinforced our confidence that the participants used the EMDEX correctly. The data suggest the need for caution before inferences are drawn about total personal exposure from area measurements. The study demonstrates the feasibility of obtaining valid measures of magnetic-field exposure with the personal exposure monitors that have been developed.

Kavet, R.; Silva, J.M.; Thornton, D. (Enertech Consultants, Campbell, CA (United States))

1992-01-01T23:59:59.000Z

51

Insulate Steam Distribution and Condensate Return Lines  

Science Conference Proceedings (OSTI)

This revised ITP tip sheet on insulating steam distribution and condensate return lines provides how-to advice for improving industrial steam systems using low-cost, proven practices and technologies.

Not Available

2006-01-01T23:59:59.000Z

52

SMB Host Processor Overhead  

NLE Websites -- All DOE Office Websites (Extended Search)

SMB SMB SMB Description There are two benchmarks included here. The msg_rate test measures the sustained MPI message rate using a communication pattern found in many real applications. For a complete explanation of the routine refer to http://www.cs.sandia.gov/smb/msgrate.html. The mpi_overhead test uses a post-work-wait method using MPI non-blocking send and receive calls to measure the user level overhead of the respective MPI calls. For a complete explanation of the routine refer to http://www.cs.sandia.gov/smb/overhead.html. Download SMB tar file How to Build The source files are in the src directory, in smb_1.0-1/src/mpi_overhead and smb_1.0-1/src/msgrate. Edit the Makefile for your environment and type 'make.' How to Run The executables run a single message at a time. The "run_script" scripts

53

Method for decreasing arbitration overhead  

SciTech Connect

This invention is a method for decreasing the arbitration overhead required to transfer messages on a shared multiprocessor bus.

Bergey, A.L. Jr.; Coale, J.L.

1983-12-01T23:59:59.000Z

54

New Construction of Distribution Lines, Service Lines, and Appurtenant...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Permitting Provider New York State Public Service Commission Any proposed construction of electricity-related facilities in residential subdivisions, including distribution and...

55

Mutual Design Considerations for Overhead AC Transmission Lines and Gas Transmission Pipelines: Volume 1: Engineering Analysis; Volu me 2: Prediction and Mitigation Procedures  

Science Conference Proceedings (OSTI)

This joint-effort project between Pipeline Research Committee of the A.G.A. and EPRI was initiated to develop analytical techniques for determining the induced potential on pipelines that parallel electric transmission lines. Its purpose was to develop analytical methods for prediction and mitigation of voltages induced on pipelines by nearby ac transmission lines. Required analytical techniques were developed and supported by field test results. New mitigation methods were developed and old ones evaluat...

1978-10-01T23:59:59.000Z

56

Overhead Transmission Inspection and Assessment Guidelines -- 2011  

Science Conference Proceedings (OSTI)

The emphasis within the transmission arena has shifted from designing and building new transmission facilities to optimizing the use, performance, and life of existing facilities. In the early 1990s, EPRI established an initiative to examine the capabilities and limitations of existing inspection and assessment methods and technology. One of the key needs identified was information on methods and technologies for inspecting/assessing the conditions and life expectancy of overhead transmission line compon...

2011-12-23T23:59:59.000Z

57

Overhead Transmission Inspection and Assessment Guidelines - 2012  

Science Conference Proceedings (OSTI)

The emphasis within the transmission arena has shifted from designing and building new transmission facilities to optimizing the use, performance, and life of existing facilities. In the early 1990s, EPRI established an initiative to examine the capabilities and limitations of existing inspection and assessment methods and technology. One of the key needs identified was information on methods and technologies for inspecting/assessing the conditions and life expectancy of overhead transmission line ...

2012-12-20T23:59:59.000Z

58

Sizing of Overhead Ground Wires for Lightning  

Science Conference Proceedings (OSTI)

Overhead ground wires, or shield wires, are placed on transmission lines as air terminals for lightning strikes to shield the phase conductors from direct strikes. Although of short duration, lightning strikes to ground wires may result in significant damage. Utilities are increasingly using optical fiber ground wires (OPGWs), and severe damage to the OPGWs could result in failure of the communication link. There is renewed interest in the dimensioning and testing of ground wires for improved ...

2012-12-12T23:59:59.000Z

59

Application Guide for Determining Maximum Switching Transient Overvoltages of Overhead Lines Rated 100 kV and Above Using the Electr omagnetic Transients Program (EMTP)  

Science Conference Proceedings (OSTI)

In recent years, through attrition and in other ways, utilities have lost many of the engineers that once performed time-domain (transient) simulations of their power systems. As a result, using the electromagnetic transients program (EMTP) to perform time-domain simulations of the power system has become a lost art; and, as a consequence, such tasks as being able to easily determine the maximum transient overvoltage for a particular transmission line have become arduous for some utilities. At the same t...

2011-11-30T23:59:59.000Z

60

Analysis of technical loss in distribution line system  

Science Conference Proceedings (OSTI)

This research was aimed to present Technical loss analysis in Hatyai of Provincial Electricity Authority (PEA). This Analysis used calculation and PSS/Adept program. For considering the technical loss in distribution system included: transmission line ... Keywords: PSS/Adept program, technical loss, three phase power flow

Narong Mungkung; Nittaya Gomurut; Tanes Tanitteerapan; Somchai Arunrungrusmi; Weerachai Chaokumnerd; Toshifumi Yuji

2009-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "overhead distribution lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Transient Behaviour and Helium Discharge in Cryogenic Distribution Line (QRL) Headers Following Breakdown of Insulation Vacuum  

E-Print Network (OSTI)

Transient Behaviour and Helium Discharge in Cryogenic Distribution Line (QRL) Headers Following Breakdown of Insulation Vacuum

Chorowski, M

1997-01-01T23:59:59.000Z

62

Transport Devices for Overhead Conductors: State of the Art Review and Promising Technologies  

Science Conference Proceedings (OSTI)

This report summarizes activities surrounding the possible development of a transmission line inspection robot as a transport device for overhead conductors. EPRI research on technologies for inspection of transmission line conductors had identified the need for a highly automated transport device to apply available inspection technologies along the length of a transmission line with minimal human intervention. A literature search was performed to identify past robotics work applied to overhead power lin...

2003-12-11T23:59:59.000Z

63

Radial Temperature Gradients of Overhead Conductors: Impact on Sag and Rating Calculations  

Science Conference Proceedings (OSTI)

It is critical for power companies to have a good understanding of the temperatures at which the bare phase conductors in their overhead transmission lines operate, particularly during system emergencies. Overhead lines are designed to have adequate clearance and normal aging for a maximum allowable conductor temperature (MACT). At or near the MACT, the electrical clearances to people, objects, buildings, and other lower-voltage conductors are at their minimum, and the design limit on loss of ...

2012-12-12T23:59:59.000Z

64

PROCEEDINGS OF THE THIRD BERKELEY WORKSHOP ON DISTRIBUTED DATA MANAGEMENT AND COMPUTER NETWORKS  

E-Print Network (OSTI)

throughput and line utilization include overhead (i,e,overhead is application dependent, and a simulation model (perhaps along the lines

Authors, Various

2011-01-01T23:59:59.000Z

65

PROCEEDINGS OF FOURTH BERKELEY CONFERENCE ON DISTRIBUTED DATA MANAGEMENT AND COMPUTER NETWORKS.  

E-Print Network (OSTI)

H. Opderbeck "A Study of Line Overhead in the ARPANET"overhead software, an important consideration in memory limited microprocessors. The logic design of the line

Hall, Dennis

2011-01-01T23:59:59.000Z

66

PROCEEDINGS OF THE FIFTH BERKELEY WORKSHOP ON DISTRIBUTED DATA MANAGEMENT AND COMPUTER NETWORKS  

E-Print Network (OSTI)

Opderbeck, "A study of line overhead in the ARPANET," Comm.features [2]: the line overhead is less than one percent and

Johnson, R.R.

2011-01-01T23:59:59.000Z

67

Definition: Transmission Line | Open Energy Information  

Open Energy Info (EERE)

Line Line (Redirected from Definition:Transmission lines) Jump to: navigation, search Dictionary.png Transmission Line A system of structures, wires, insulators and associated hardware that carry electric energy from one point to another in an electric power system. Lines are operated at relatively high voltages varying from 69 kV up to 765 kV, and are capable of transmitting large quantities of electricity over long distances.[1] View on Wikipedia Wikipedia Definition An overhead power line, also known as a "pylon" in some areas, is a structure used in electric power transmission and distribution to transmit electrical energy along large distances. It consists of one or more conductors (most often three or four) suspended by towers or utility poles. Since most of the insulation is provided by air, overhead power lines are

68

An Examination of Temporal Trends in Electricity Reliability Based on Reports from U.S. Electric Utilities  

E-Print Network (OSTI)

and distribution lines are overhead versus underground), andand distribution lines are overhead versus underground), and

Eto, Joseph H.

2013-01-01T23:59:59.000Z

69

Parameters that Influence the Aging and Degradation of Overhead Conductors  

Science Conference Proceedings (OSTI)

EPRI has been investigating degradation mechanisms, inspection methods, and condition assessment methods for overhead line conductors for a few years. This report identifies conductor failure modes and discusses the associated degradation mechanisms. It further discusses methods of inspection and assessment that may be used to establish the current condition of conductors. Finally, it discusses how this data can be used to develop end-of-life criteria and estimate remaining useful life for conductors.

2003-12-22T23:59:59.000Z

70

Definition: Transmission Line | Open Energy Information  

Open Energy Info (EERE)

Transmission Line Transmission Line Jump to: navigation, search Dictionary.png Transmission Line A system of structures, wires, insulators and associated hardware that carry electric energy from one point to another in an electric power system. Lines are operated at relatively high voltages varying from 69 kV up to 765 kV, and are capable of transmitting large quantities of electricity over long distances.[1] View on Wikipedia Wikipedia Definition An overhead power line, also known as a "pylon" in some areas, is a structure used in electric power transmission and distribution to transmit electrical energy along large distances. It consists of one or more conductors (most often three or four) suspended by towers or utility poles. Since most of the insulation is provided by air, overhead power lines are

71

On-line simulator for decision support in distribution control centers in a smart grid context  

Science Conference Proceedings (OSTI)

This paper shows the physical, logical and functional architecture designed for integrating an On-Line Simulator of Electrical Distribution Networks (SED by its acronyms in Spanish) for decision support in Distribution Control Centers in Mexico. The ... Keywords: CIM, DMS, SCADA, decision support system, electrical distribution network, on-line data, optimal restoration, real-time data, simulator, smart grid

A. Espinosa-Reza; A. Quintero-Reyes; R. Garcia-Mendoza; J. F. Borjas-Diaz; T. M. Calleros-Torres; B. Sierra-Rodriguez; R. Torres-Abrego

2010-10-01T23:59:59.000Z

72

Electric Utility Transmission and Distribution Line Engineering Program  

Science Conference Proceedings (OSTI)

Economic development in the United States depends on a reliable and affordable power supply. The nation will need well educated engineers to design a modern, safe, secure, and reliable power grid for our future needs. An anticipated shortage of qualified engineers has caused considerable concern in many professional circles, and various steps are being taken nationwide to alleviate the potential shortage and ensure the North American power system's reliability, and our world-wide economic competitiveness. To help provide a well-educated and trained workforce which can sustain and modernize the nation's power grid, Gonzaga University's School of Engineering and Applied Science has established a five-course (15-credit hour) Certificate Program in Transmission and Distribution (T&D) Engineering. The program has been specifically designed to provide working utility engineering professionals with on-line access to advanced engineering courses which cover modern design practice with an industry-focused theoretical foundation. A total of twelve courses have been developed to-date and students may select any five in their area of interest for the T&D Certificate. As each course is developed and taught by a team of experienced engineers (from public and private utilities, consultants, and industry suppliers), students are provided a unique opportunity to interact directly with different industry experts over the eight weeks of each course. Course material incorporates advanced aspects of civil, electrical, and mechanical engineering disciplines that apply to power system design and are appropriate for graduate engineers. As such, target students for the certificate program include: (1) recent graduates with a Bachelor of Science Degree in an engineering field (civil, mechanical, electrical, etc.); (2) senior engineers moving from other fields to the utility industry (i.e. paper industry to utility engineering or project management positions); and (3) regular working professionals wishing to update their skills or increase their knowledge of utility engineering design practices and procedures. By providing graduate educational opportunities for the above groups, the T&D Program will help serve a strong industry need for training the next generation of engineers in the cost-effective design, construction, operation, and maintenance of modern electrical transmission and distribution systems. In addition to developing the on-line engineering courses described above, the T&D Program also focused significant efforts towards enhancing the training opportunities available to power system operators in the northwest. These efforts have included working with outside vendors to provide NERC-approved training courses in Gonzaga University's (GU) system operator training facility, support for an accurate system model which can be used in regional blackstart exercises, and the identification of a retired system operator who could provide actual regional training courses. The GU system operator training facility is also being used to recruit young workers, veterans, and various under-represented groups to the utility industry. Over the past three years students from Columbia Gorge Community College, Spokane Falls Community College, Walla Walla Community College, Central Washington University, Eastern Washington University, Gonzaga University, and various local high schools have attended short (one-day) system operator training courses free of charge. These collaboration efforts has been extremely well received by both students and industry, and meet T&D Program objectives of strengthening the power industry workforce while bridging the knowledge base across power worker categories, and recruiting new workers to replace a predominantly retirement age workforce. In the past three years the T&D Program has provided over 170 utility engineers with access to advanced engineering courses, been involved in training more than 300 power system operators, and provided well over 500 college and high school students with an experienc

Peter McKenny

2010-08-31T23:59:59.000Z

73

Guide for Transmission Line Grounding  

Science Conference Proceedings (OSTI)

Electrical utilities have a duty to provide effective grounding for managing steady-state and fault currents, whether near a large generating station or at a remote distribution pole ground. For transmission lines, this imperative is usually met with investment in overhead ground wires and grounding electrodes. Effective grounding at each tower improves reliability8212by providing low path impedance to lightning strokes8212and contributes to safety. However, the fundamental physical parameters in ground ...

2007-12-20T23:59:59.000Z

74

ETM (Distribution Network Automation on 10 kV cable line stations...  

Open Energy Info (EERE)

ETM (Distribution Network Automation on 10 kV cable line stations) (Smart Grid Project) Jump to: navigation, search Project Name ETM (Distribution Network Automation on 10 kV cable...

75

On-line hydraulic state prediction for water distribution systems  

E-Print Network (OSTI)

This paper describes and demonstrates a method for on?line hydraulic state prediction in urban water networks. The proposed method uses a Predictor?Corrector (PC) approach in which a statistical data?driven algorithm is ...

Whittle, Andrew

76

Path specialization: reducing phased execution overheads  

Science Conference Proceedings (OSTI)

As garbage collected languages become widely used, the quest for reducing collection overheads becomes essential. In this paper, we propose a compiler optimization called path specialization that shrinks the cost of memory barriers for a wide ... Keywords: c#, garbage collection, memory management, read barriers, write barriers

Filip Pizlo; Erez Petrank; Bjarne Steensgaard

2008-06-01T23:59:59.000Z

77

Managing Transmission Line Steel Structures, Version 2  

Science Conference Proceedings (OSTI)

Utilities are under more pressure than ever to efficiently utilize existing overhead lines by optimizing their life and reliability. A key issue involves the question of how to efficiently inspect and maintain transmission systems. In light of aging transmission and distribution infrastructures, resources are needed to design and implement cost-effective assessment and maintenance programs. This valuable reference provides an in-depth look at all facets of an inspection, assessment, and maintenance progr...

2004-12-02T23:59:59.000Z

78

Effective Methods in Reducing Communication Overheads in Solving  

NLE Websites -- All DOE Office Websites (Extended Search)

0/2002 Yun (Helen) He, GHC2002 1 0/2002 Yun (Helen) He, GHC2002 1 Effective Methods in Reducing Communication Overheads in Solving PDE Problems on Distributed-Memory Computer Architectures Chris Ding and Yun (Helen) He Lawrence Berkeley National Laboratory 10/10/2002 Yun (Helen) He, GHC2002 2 Outline n Introduction n Traditional Method n Ghost Cell Expansion (GCE) Method n GCE Algorithm n Diagonal Communication Elimination (DCE) Technique n Analysis of GCE Method n Message Volume n Communication Time n Memory Usage and Computational Cost n Performance n Test Problem n Test Results n Conclusions 10/10/2002 Yun (Helen) He, GHC2002 3 Background n On a distributed system, each processor holds a problem

79

Demonstration of Advanced Conductors for Overhead Transmission Lines  

Science Conference Proceedings (OSTI)

This report describes a collaborative research project to evaluate the operational performance of advanced High-Temperature, Low-Sag (HTLS) conductors through approximately three years of field experience. The results of the project provide general information on installing, sagging, and clipping HTLS conductors and about their long-term behavior at different electrical current levels and in various geographical locales. Key information is provided on design, installation, operation, and maintenance of s...

2008-07-29T23:59:59.000Z

80

ETM (Distribution Network Automation on 10 kV cable line stations) (Smart  

Open Energy Info (EERE)

ETM (Distribution Network Automation on 10 kV cable line stations) (Smart ETM (Distribution Network Automation on 10 kV cable line stations) (Smart Grid Project) Jump to: navigation, search Project Name ETM (Distribution Network Automation on 10 kV cable line stations) Country Hungary Headquarters Location Budapest, Hungary Coordinates 47.498405°, 19.040758° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":47.498405,"lon":19.040758,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

Note: This page contains sample records for the topic "overhead distribution lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Overhead elimination mechanisms in real-time systems  

Science Conference Proceedings (OSTI)

The OEM (Overhead Elimination Mechanism), a scheduler for finding minimal overheads with reduced context switches in real-time systems, was developed using procedural methods. Software produced by these methods has often proven to be inflexible and difficult ... Keywords: Real-time scheduling, context switches, object-oriented, procedural, rate monotonic algorithm

Ilhyun Lee; Haesun K. Lee; Narayan Debnath

2006-04-01T23:59:59.000Z

82

Mitigation of Animal-Caused Outages For Distribution Lines and Substations  

Science Conference Proceedings (OSTI)

A significant number of electric outages throughout North America are caused by animals -- mammals, birds, snakes, etc. These animal-caused outages are increasingly common in both urban and residential areas. By taking a pro-active approach to mitigating outages, utilities will spare the lives of wildlife and address the increasing pressures from environmental groups and concerned utility customers. This document describes a study designed to mitigate animal-caused outages for distribution lines and subs...

1999-12-20T23:59:59.000Z

83

Study on a method of design for rural power distribution lines based on 3D GIS technology  

Science Conference Proceedings (OSTI)

The aim of this paper is to study a three-dimensional GIS method of design for power distribution lines in rural areas, by applying SuperMap to the GIS, and to integrate the visual computer programming environment in the secondary development. A three-dimensional ... Keywords: Digital elevation model, GIS, Power distribution lines, Section map

Yong Yang; Yong-Fu Liu; Ying-Li Cao

2010-06-01T23:59:59.000Z

84

Integrated Technology for Distribution Systems Applications: Survey and Testing of Voltage Detecting/Indicating Devices for AC Power Lines  

Science Conference Proceedings (OSTI)

This report summarizes product reviews and testing commercially available voltage-sensing devices used to detect energized electric distribution lines, with particular focus on minimum detection and indication performance. To adequately detect line energization across the entire spectrum of possible voltage levels on a power line (from 40 Vac to full line voltage), multiple devices are currently necessary. The ideal improvement to address current gaps in voltage sensing would be the development of a ...

2013-12-17T23:59:59.000Z

85

Power outages often spur questions around burying power lines ...  

U.S. Energy Information Administration (EIA)

Despite the cost, underground power lines are often found in urban areas, where the density of the required overhead wire would cause significant obstructions.

86

Kentucky Transmission Line Siting Methodology  

Science Conference Proceedings (OSTI)

EPRI, in conjunction with Georgia Transmission Corporation (GTC) and Photo Science, Inc. (PSI), developed a standardized methodology for siting overhead electric transmission lines. EPRI report 1013080, EPRI-GTC Overhead Electric Transmission Line Siting Methodology, published February 2006, provides additional information. This methodology has been applied in Georgia and currently is being applied to projects in Kentucky by East Kentucky Power Cooperative and E.ON U.S. on behalf of Louisville Gas and El...

2007-12-18T23:59:59.000Z

87

Practical method for evaluating ground fault current distribution in station supplied by an unhomogeneous line  

SciTech Connect

The paper presents an analytical procedure which enables a quick and, at the design stage, correct evaluation of the ground fault current distribution, for a fault in a substation supplied by a line composed of two or more uniform and different sections. The advantages of the method are based on the simplicity and accuracy of the formulae for solving uniform lumped parameter ladder circuits of any size and under any terminal conditions. The formulae are obtained by applying the general equations of the line represented by discrete parameters on a specific electrical circuit formed by a transmission line ground wire during ground faults. The paper also derives simple and exact expressions for solving ladder circuits formed by the discretization of underground conductors which are in continuous contact with earth (e.g., the sheaths of a cable, an interconnecting copper buried in the soil, a pipeline, etc.). The correct prediction of the expected ground fault current parts in soil and neutral conductors is of great importance in designing safe and economical substation grounding installations.

Popovic, L.M. [JP Elektroprivreda Srbije, Belgrade (Yugoslavia)] [JP Elektroprivreda Srbije, Belgrade (Yugoslavia)

1997-04-01T23:59:59.000Z

88

DOE-HDBK-1141-2001; Radiological Assessor Training, Overheads  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

13.1 13.1 Overhead 13.1 DOE-HDBK-1141-2001 Radiological Aspects of Accelerators Objectives: * Identify the general characteristics of accelerators. * Identify the types of particles accelerated. * Identify the two basic types of accelerators. * Identify uses for accelerators. * Define prompt radiation. * Identify prompt radiation sources. OT 13.2 Overhead 13.2 DOE-HDBK-1141-2001 Radiological Aspects of Accelerators (cont.) Objectives: * Define radioactivation. * Explain how contaminated material differs from activated material with regard to radiological concerns. * Identify activation sources. OT 13.3 Overhead 13.3 DOE-HDBK-1141-2001 Radiological Aspects of Accelerators (cont.) Objectives: * Identify engineered and administrative controls at accelerator facilities. * Identify the special

89

The Importance of Non-Data-Communication Overheads in MPI  

Science Conference Proceedings (OSTI)

With processor speeds no longer doubling every 18??24 months owing to the exponential increase in power consumption and heat dissipation, modern high-end computing systems tend to rely less on the performance of single processing units and instead ... Keywords: Blue Gene/P, MPI, non-data-communication overheads

Pavan Balaji; Anthony Chan; William Gropp; Rajeev Thakur; Ewing Lusk

2010-02-01T23:59:59.000Z

90

On-line reactive power compensation schemes for unbalanced three phase four wire distribution feeders  

Science Conference Proceedings (OSTI)

A new reactive power compensation method is developed to reduce the negative and zero sequence components of load currents and to improve the load bus power factor of unbalanced three-phase four-wire distribution feeders. Negative and zero sequences currents may cause additional losses and damages to power systems. Load compensation at the load bus is an effective method to eliminate those undesired sequence currents. The compensation technique uses a Y-connected and a [Delta]-connected static reactive power compensators to give a different amount of reactive power compensation to each phase. The compensation formulas are very suitable for on-line control by measuring phase voltages and currents in the real time. The compensation effect can also be achieved even if one leg of the SVCs is out of service. In addition to balancing effect and power factor improvement at the load bus, the SVCs can also be used to support the load bus voltage and to maintain the substation feeder at unity powder factor. Digital simulations are made with the load data measured from an 11.4kV secondary substation feeder.

Sanyi Lee; Chijui Wu (National Taiwan Inst. of Tech., Taipei (Taiwan, Province of China). Dept. of Electrical Engineering)

1993-10-01T23:59:59.000Z

91

An Approach for Reduction of the Security Overhead in Smart Grid Communication Infrastructure Employing Dedicated Encryption  

E-Print Network (OSTI)

An Approach for Reduction of the Security Overhead in Smart Grid Communication Infrastructure for data secu- rity within the Smart Grid communications infrastructure. A significant part communication channels. Keywords--Smart Grid; information-communication infras- tructure; overheads; data

Kavcic, Aleksandar

92

Bounding Communication Energy Overhead in Parallel Networks with Power-Delay Scalability  

Science Conference Proceedings (OSTI)

We propose the energy scalability and power-delay product scalability as new metrics for calculating and estimating boundaries on the energy overhead of parallel processing systems. Because both properties consider network topology and the algorithm ... Keywords: energy overhead, communication overhead, energy scalability, power-delay scalability

James S. Tandon; Steven E. Butner

2008-12-01T23:59:59.000Z

93

CLOMP: Accurately Characterizing OpenMP Application Overheads  

SciTech Connect

Despite its ease of use, OpenMP has failed to gain widespread use on large scale systems, largely due to its failure to deliver sufficient performance. Our experience indicates that the cost of initiating OpenMP regions is simply too high for the desired OpenMP usage scenario of many applications. In this paper, we introduce CLOMP, a new benchmark to characterize this aspect of OpenMP implementations accurately. CLOMP complements the existing EPCC benchmark suite to provide simple, easy to understand measurements of OpenMP overheads in the context of application usage scenarios. Our results for several OpenMP implementations demonstrate that CLOMP identifies the amount of work required to compensate for the overheads observed with EPCC. Further, we show that CLOMP also captures limitations for OpenMP parallelization on NUMA systems.

Bronevetsky, G; Gyllenhaal, J; de Supinski, B

2008-02-11T23:59:59.000Z

94

The Orientation Distributions of Lines, Surfaces, and Interfaces Around Three-Phase Boundaries in Solid Oxide Fuel Cell Cathodes  

Science Conference Proceedings (OSTI)

Three-dimensional electron backscatter diffraction was used to measure the crystallographic distribution of the electrochemically relevant triple phase boundary lines and surfaces near them in SOFC cathodes made up of a porous mixture of yttria-stabilized zirconia and lanthanum strontium manganese oxide, both before and after mild electrochemical loading. All distributions were observed to be nearly isotropic, but non-random textures above the detection threshold were observed. The distributions differ between the two cells, as do the phase fractions and the electrochemical history. The different distributions are interpreted as evidence that steady-state distributions vary locally with phase fractions or that they evolve during the initial operation of the fuel cell. The rates at which triple lines, pore surfaces, and interface boundaries in the porous mixture approach a steady-state value appear to decrease with the average amount of mass transport required to reorient that specific feature. This work provides initial insights into the crystallography of interfaces in a multiphase ceramic material.

Dillon, Shen; Helmick, Lam; Miller, Herbert M.; Johnson, Christopher; Wilson, Lane; Gemmen, Randall; Petrova, Rumyana; Barmak, Katayun; Gerdes, Kirk; Rohrer, Gregory S.; Salvador, Paul A.

2011-11-01T23:59:59.000Z

95

Transmission Line Inspires A New Distributed Algorithm to Solve the Nonlinear Dynamical System of Physical Circuit  

E-Print Network (OSTI)

As known, physical circuits, e.g. integrated circuits or power system, work in a distributed manner, but these circuits could not be easily simulated in a distributed way. This is mainly because that the dynamical system of physical circuits is nonlinear and the linearized system of physical circuits is non-symmetrical. This paper proposes a simple and natural strategy to simulate the physical circuit in parallel, by mimicking the internal wires or interconnects inside the circuits by distributed numerical algorithm. Mimic Transmission Method (MTM) is a new distributed numerical algorithm to solve the nonlinear ordinary differential equations extracted from physical circuits. It maps the transmission delay of interconnects between subcircuits to the communication delay of digital data link between processors. MTM is not a global iterative algorithm, and it does only one distributed computation at each time window to obtain accurate result, so unconvergence issues do not need to be worried about.

Wei, Fei

2010-01-01T23:59:59.000Z

96

Variability of Raindrop Size Distributions in a Squall Line and Implications for Radar Rainfall Estimation  

Science Conference Proceedings (OSTI)

The intrastorm variability of raindrop size distributions as a source of uncertainty in single-parameter and dual-parameter radar rainfall estimates is studied using time series analyses of disdrometer observations. Two rain-rate (R) estimators ...

Remko Uijlenhoet; Matthias Steiner; James A. Smith

2003-02-01T23:59:59.000Z

97

Evaluation of Connector Mitigation Measures for Lines Operating at High Temperatures  

Science Conference Proceedings (OSTI)

Test results from a previous research conducted by the Electric Power Research Institute (EPRI) indicated that connectors on overhead lines operated above 100C may fail from high temperatures. To allow an overhead line to operate at a temperature higher than the limit imposed by the connectors, research was initiated in 2009 to develop mitigation measures for the compression connectors that have a high ...

2012-11-14T23:59:59.000Z

98

Simulation of atmospheric overvoltages on 400kV power lines in transmission system  

Science Conference Proceedings (OSTI)

External overvoltages are unambiguously caused by atmospheric overvoltages on overhead lines an emerges during storms. The paper presents simulation results of atmospheric overvoltages in slovak transmission system, which were realized in purpose of ... Keywords: overhead power lines, overvoltages, power system, surge arrester

Martin Mucha; aneta Eleschov; Anton Bel?; Frantiek Jan?ek; Peter Szathmry

2006-09-01T23:59:59.000Z

99

Rapid scanning of spatial distribution of spectral line intensities in PLT tokamak  

DOE Green Energy (OSTI)

A rotating mirror system has been constructed to allow repeated scanning during the discharge, in either poloidal (vertical) or toroidal (horizontal) direction, of selected spectral lines in PLT discharges. The maximum repetition rate for a poloidal scan is about 2 msec. The wavelength range, 2000 to 7000 A, is presently being increased to include the Schumann region, 1200 to 2000 A. Observations of radial profiles in the lines of HI, HeI, HeII, CIII, CV, OII and OV have revealed a number of curious asymmetries, which often change in the time during the discharge, as well as with change of plasma conditions, e.g., a change of aperture limiters from tungsten to carbon. The asymmetries tend to be more pronounced for the lower states of ionization, i.e., closer to the plasma periphery, and they are particularly strong near the times of disruptions caused by plasma instabilities.

Suckewer, S.; Hinnov, E.; Schivell, J.

1978-03-01T23:59:59.000Z

100

Transmission Line Design and Construction  

Science Conference Proceedings (OSTI)

The power industry wants to construct reliable and cost-effective overhead lines. A reliable and cost effective line requires not only that the line and structures meet design criteria for strength, clearances, and electrical considerations, but also that it be designed for safe and easy construction and maintenance. Design and construction practices should therefore go hand in hand. Information among various departments within a utility has to be shared for mutual benefit. Communication is a key ...

2012-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "overhead distribution lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Achieving Robustness and Minimizing Overhead in Parallel Algorithms Through Overlapped Communication/Computation  

Science Conference Proceedings (OSTI)

One of the major goals in the design of parallel processing machines and algorithms is to achieve robustness and reduce the effects of the overhead introduced when a given problem is parallelized or a fault occurs. A key contributor to overhead is communication ... Keywords: Proteus Parallel Computer System, communication overhead, complete exchange, fault tolerance, overlapping computing and communication, partitioning and scheduling for high-performance

Arun K. Somani; Allen M. Sansano

2000-05-01T23:59:59.000Z

102

Reduce Overhead, Implement Energy Efficiency in Water/Wastewater  

E-Print Network (OSTI)

Through the Focus on Energy program in the State of Wisconsin we have been able to identify savings for industries in their water/wastewater treatment or distribution systems. Modifications required to realize savings resulted in reduced energy consumption and reduced cost to industry. Reduced cost is a pleasant benefit when the cost of utility bills comes off the bottom line and if the industry is working on a 5 percent margin the actual value of the savings could be considered to be 20 times its actual savings. Modifications can be made in wastewater treatment applications by adjusting dissolved oxygen (DO) levels in treatment process, modifying aeration system blowers, changing diffusers, and considering a DO automatic control system. In water systems, changes in pump operations by not throttling valves for control, adding variable speed drives to constant speed operations, and reducing pressure on systems where it will not adversely impact the process.

Cantwell, J. C.

2007-01-01T23:59:59.000Z

103

DOE-HDBK-1143-2001; Radiological Control Training for Supervisors - Overheads  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Control Training for Supervisors Control Training for Supervisors DOE-HDBK-1143-2001 Overheads Office of Environment, Safety & Health U.S. Department of Energy Radiological Control Training for Supervisors DOE-HDBK-1143-2001 Overheads This page intentionally left blank. ii OT 1.1 DOE-HDBK-1143-2001 Overhead 1.1 Regulatory Documents Objectives: * Identify the hierarchy of regulatory documents. * Define the purposes of 10 CFR Parts 820, 830 and 835. * Define the purpose of the DOE Radiological Control Standard. OT 1.2 DOE-HDBK-1143-2001 Overhead 1.2 Regulatory Documents (cont.) Objectives: * Define the terms

104

A Negative-Overhead, Self-Timed Pipeline  

E-Print Network (OSTI)

This' paper presents' a novel variation of wave pipelining that we call "surfing." In previous wave pipelined designs, timing uncertainty grows' monotonically as events' propagate through gates or other logic elements'. We bound this dispersion by propagating a timing pulse along with the data values. Our logic elements have delays' that are smaller in the presence of the pulse than in its' absence. This' produces a "surfing " effect: events' are bound in close proximity to the timing pulse. We demonstrate this approach with the design of a 4x12 multiplier. Spice simulations from the extracted layout indicate that this design is robust in the presence of fabrication parameter variation and power supply noise. Because timing is' maintained by accelerating the logic, our designs achieve lower latency than their purely combinational equivalents'. Thus, the control overhead for these designs is' indeed negative.

Brian D. Winters; Mark R. Greenstreet

2002-01-01T23:59:59.000Z

105

The Spin-Resolved Atomic Velocity Distribution and 21-cm Line Profile of Dark-Age Gas  

E-Print Network (OSTI)

The 21-cm hyperfine line of atomic hydrogen (HI) is a promising probe of the cosmic dark ages. In past treatments of 21-cm radiation it was assumed the hyperfine level populations of HI could be characterized by a velocity-independent ``spin temperature'' T_s determined by a competition between 21-cm radiative transitions, spin-changing collisions, and (at lower redshifts) Lyman-alpha scattering. However we show here that, if the collisional time is comparable to the radiative time, the spin temperature will depend on atomic velocity, T_s=T_s(v), and one must replace the usual hyperfine level rate equations with a Boltzmann equation describing the spin and velocity dependence of the HI distribution function. We construct here the Boltzmann equation relevant to the cosmic dark ages and solve it using a basis-function method. Accounting for the actual spin-resolved atomic velocity distribution results in up to a 2 per cent suppression of the 21-cm emissivity, and a redshift and angular-projection dependent suppression or enhancement of the linear power spectrum of 21-cm fluctuations of up to 5 per cent. The effect on the 21-cm line profile is more dramatic -- its full-width at half maximum (FWHM) can be enhanced by up to 60 per cent relative to the velocity-independent calculation. We discuss the implications for 21-cm tomography of the dark ages.

Christopher M. Hirata; Kris Sigurdson

2006-05-02T23:59:59.000Z

106

Experience Based Seismic Verification Guidelines for Overhead Crane Systems: Volume I - Seismic Review Procedure; Volume II - Performance of Overhead Cranes in Strong Motion Earthquakes  

Science Conference Proceedings (OSTI)

This report provides guidelines that can be used to perform an experience-based seismic capability verification of overhead cranes systems at nuclear power plants. The report summarizes seismic experience data from strong-motion earthquakes for these systems and identifies the characteristics of systems that could lead to failure or unacceptable behavior in an earthquake. The seismic experience data show that overhead crane systems exhibit extremely good performance under strong-motion seismic loading, w...

2005-06-08T23:59:59.000Z

107

An analytical model for input-buffered optical packet switches with reconfiguration overhead  

Science Conference Proceedings (OSTI)

The overhead associated with reconfiguring a switch fabric in optical packet switches is an important issue in relation to the packet transmission time and can adversely affect switch performance. The reconfiguration overhead increases the mean waiting ... Keywords: Batch arrival, Discrete-time system, Optical communication, Stochastic analysis, Stochastic decomposition

Kuan-Hung Chou; Woei Lin

2011-12-01T23:59:59.000Z

108

Cost-free scan: a low-overhead scan path design methodology  

Science Conference Proceedings (OSTI)

Conventional scan design imposes considerable area and delay overhead by using larger scan flip-flops and additional scan wires without utilizing the functionality of the combinational logic. We propose a novel low-overhead scan design methodology, called ... Keywords: Scan design, DFT, Testing

Chih-Chang Lin; Mike Tien-Chien Lee; Malgorzata Marek-Sadowska; Kuang-Chien Chen

1995-12-01T23:59:59.000Z

109

Practical on-line dvs scheduling for fixed-priority real-time systems  

E-Print Network (OSTI)

We present an on-line Dynamic Voltage Scaling (DVS) algorithm for preemptive fixed-priority real-time systems called low power Limited Demand Analysis with Transition overhead (lpLDAT). It is the first algorithm in its class to explicitly account for transition overhead, and can reduce the energy consumption by as much as 40 % when compared to previous methods. 1.

Bren Mochocki; Xiaobo Sharon Hu

2005-01-01T23:59:59.000Z

110

Inspection and Assessment of Overhead Transmission Line Hardware: State of Art Technologies and Future Development  

Science Conference Proceedings (OSTI)

This report provides background on the mechanisms of atmospheric corrosion and the environmental factors that affect it and describes an on-going research effort to develop new field methods based on electrochemical impedance spectroscopy (EIS) and capacitance discharge rate (CDR) to assess the status of coating systems.BackgroundCoating systems provide a highly resistive barrier that prevents the environment from ...

2012-12-12T23:59:59.000Z

111

Emission-Line Galaxy Surveys as Probes of the Spatial Distribution of Dwarf Galaxies. I. The University of Michigan Survey  

E-Print Network (OSTI)

Objective-prism surveys which select galaxies on the basis of line-emission are extremely effective at detecting low-luminosity galaxies and constitute some of the deepest available samples of dwarfs. In this study, we confirm that emission-line galaxies (ELGs) in the University of Michigan (UM) objective-prism survey (MacAlpine et al. 1977-1981) are reliable tracers of large-scale structure, and utilize the depth of the samples to examine the spatial distribution of low-luminosity (M$_{B} > $ -18.0) dwarfs relative to higher luminosity giant galaxies (M$_{B} \\leq$ -18.0) in the Updated Zwicky Catalogue (Falco et al. 1999). New spectroscopic data are presented for 26 UM survey objects. We analyze the relative clustering properties of the overall starbursting ELG and normal galaxy populations, using nearest neighbor and correlation function statistics. This allows us to determine whether the activity in ELGs is primarily caused by gravitational interactions. We conclude that galaxy-galaxy encounters are not the sole cause of activity in ELGs since ELGs tend to be more isolated and are more often found in the voids when compared to their normal galaxy counterparts. Furthermore, statistical analyses performed on low-luminosity dwarf ELGs show that the dwarfs are less clustered when compared to their non-active giant neighbors. The UM dwarf samples have greater percentages of nearest neighbor separations at large values and lower correlation function amplitudes relative to the UZC giant galaxy samples. These results are consistent with the expectations of galaxy biasing.

Janice C. Lee; John J. Salzer; Jessica Rosenberg; Daniel Law

2000-01-21T23:59:59.000Z

112

Checkpointing Using Mobile Agents in Distributed Systems  

Science Conference Proceedings (OSTI)

Traditional message passing based checkpointing and rollback recovery algorithms perform well for tightly coupled systems. In wide area distributed systems these algorithms may suffer from large overhead due to message passing delay and network traffic. ...

Partha Sarathi Mandal; Krishnendu Mukhopadhyaya

2007-03-01T23:59:59.000Z

113

Causes and Effects of Microshocks Under Transmission Lines  

Science Conference Proceedings (OSTI)

Because the effect of a voltage on an overhead wire extends into the surrounding space, electric fields occur beneath overhead electric power transmission lines; and voltages are induced on nearby electrically conducting objects, whether vehicles, buildings, people, animals, or other similarly sized objects. Electric field induction can result in a current flow from the affected object to ground. This current flows to earth through the object's capacitance to ground and any parallel conducting ...

2013-10-07T23:59:59.000Z

114

EA-0962: Construction and Routine Operation of a 12-kilovolt Overhead  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

62: Construction and Routine Operation of a 12-kilovolt 62: Construction and Routine Operation of a 12-kilovolt Overhead Powerline and Formal Authorization for a 10-inch and 8-inch Fresh Water Pipeline Right-of-Way at Naval Petroleum Reserve No. 1, Kern County, California EA-0962: Construction and Routine Operation of a 12-kilovolt Overhead Powerline and Formal Authorization for a 10-inch and 8-inch Fresh Water Pipeline Right-of-Way at Naval Petroleum Reserve No. 1, Kern County, California SUMMARY This EA evaluates the environmental impacts of the proposal to install an overhead powerline extension from the U.S. Department of Energy's Naval Petroleum Reserve No. 1 (NPR-1) power source to the WKWD Station A, which will significantly reduce NPR-1's overall utility costs. NPR-1 is known as Elk Hills oil field and is located in the southern San Joaquin Valley,

115

A Neural Network Model for Construction Projects Site Overhead Cost Estimating in Egypt  

E-Print Network (OSTI)

Estimating of the overhead costs of building construction projects is an important task in the management of these projects. The quality of construction management depends heavily on their accurate cost estimation. Construction costs prediction is a very difficult and sophisticated task especially when using manual calculation methods. This paper uses Artificial Neural Network (ANN) approach to develop a parametric cost-estimating model for site overhead cost in Egypt. Fifty-two actual real-life cases of building projects constructed in Egypt during the seven year period 2002-2009 were used as training materials. The neural network architecture is presented for the estimation of the site overhead costs as a percentage from the total project price.

ElSawy, Ismaail; Razek, Mohammed Abdel

2011-01-01T23:59:59.000Z

116

On-line Task Granularity Adaptation for Dynamic Grid Applications  

E-Print Network (OSTI)

On-line Task Granularity Adaptation for Dynamic Grid Applications Nithiapidary Muthuvelu1, Ian Chai by adjusting the task granularity at the grid scheduler. We propose an on-line scheduling algorithm which@csse.unimelb.edu.au Abstract. Deploying lightweight tasks on grid resources would let the commu- nication overhead dominate

Buyya, Rajkumar

117

ANALYSIS OF DISTRIBUTION FEEDER LOSSES DUE TO ADDITION OF DISTRIBUTED PHOTOVOLTAIC GENERATORS  

SciTech Connect

Distributed generators (DG) are small scale power supplying sources owned by customers or utilities and scattered throughout the power system distribution network. Distributed generation can be both renewable and non-renewable. Addition of distributed generation is primarily to increase feeder capacity and to provide peak load reduction. However, this addition comes with several impacts on the distribution feeder. Several studies have shown that addition of DG leads to reduction of feeder loss. However, most of these studies have considered lumped load and distributed load models to analyze the effects on system losses, where the dynamic variation of load due to seasonal changes is ignored. It is very important for utilities to minimize the losses under all scenarios to decrease revenue losses, promote efficient asset utilization, and therefore, increase feeder capacity. This paper will investigate an IEEE 13-node feeder populated with photovoltaic generators on detailed residential houses with water heater, Heating Ventilation and Air conditioning (HVAC) units, lights, and other plug and convenience loads. An analysis of losses for different power system components, such as transformers, underground and overhead lines, and triplex lines, will be performed. The analysis will utilize different seasons and different solar penetration levels (15%, 30%).

Tuffner, Francis K.; Singh, Ruchi

2011-08-09T23:59:59.000Z

118

Honeybees and Power Line EMF Environments  

Science Conference Proceedings (OSTI)

This Resource Paper reviews research relevant to potential interactions between electric and magnetic field environments in the vicinity of high voltage overhead transmission lines. The paper deals first, with a description of a series of electric field studies conducted in a power line environment followed by mechanism studies under controlled conditions; second, with studies of the ability of bees to discriminate static and alternating magnetic fields; and third, with a study of native bees in a power ...

2010-12-06T23:59:59.000Z

119

Revised 1/17/12 Indirect Cost Recovery/Overhead Distribution Policy  

E-Print Network (OSTI)

with the sponsored project whereas indirect cost items cannot be identified readily and specifically with a particular sponsored project. A. Direct Costs Direct costs, as defined by the federal government, are those costs that can be identified specifically with a particular sponsored project, an instructional activity

120

EPRI Transmission Line Reference Book: 115-345 kV Compact Line Design, The Blue Book  

Science Conference Proceedings (OSTI)

This report is an updated edition of the industry standard on overhead line compaction, the EPRI Transmission Line Reference Book: 115-138 kV Compact Line Design, commonly known as the "Blue Book," which was last published in 1978. Publication of this new edition is the culmination of three years of research by a team of experts in the field. The report includes the latest information on research, technology, materials, and utility experience with compact lines.

2008-11-05T23:59:59.000Z

Note: This page contains sample records for the topic "overhead distribution lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Multi-stage programming with functors and monads: Eliminating abstraction overhead from generic code  

Science Conference Proceedings (OSTI)

We use multi-stage programming, monads and Ocaml's advanced module system to demonstrate how to eliminate all abstraction overhead from generic programs, while avoiding any inspection of the resulting code. We demonstrate this clearly with Gaussian Elimination ... Keywords: Functor, Generative, Genericity, Linear algebra, MetaOCaml, Staging, Symbolic

Jacques Carette; Oleg Kiselyov

2011-05-01T23:59:59.000Z

122

Predicting energy and performance overhead of real-time operating systems  

Science Conference Proceedings (OSTI)

We present a high-level method for rapidly and accurately estimating energy and performance overhead of Real-Time Operating Systems. Unlike most other approaches, which rely on Transaction-Level Modeling (TLM), we infer the information we need directly ...

Sandro Penolazzi; Ingo Sander; Ahmed Hemani

2010-03-01T23:59:59.000Z

123

Overhead energy considerations for efficient routing in wireless sensor networks q  

E-Print Network (OSTI)

Energy is the most critical resource in the life of a wireless sensor node. Therefore, its usage must be optimized to maximize the network life. It is known that for higher path loss exponent values, utilizing shorter communication links reduces the transmitter energy, whenever the radio equipment has power adjustment capability. Although the transmitter energy is one of the major factors of total energy dissipation, neglecting the overhead energy could result in suboptimal energy usage. Routing algorithms should also be concerned about the overhead energy which is wasted at each hop of data transfer. In this paper, we investigate the use of multi-hop communication links and compare the amount of energy gain upon alternative routes using analytical techniques. We show that employing multi-hop links does not always result in energy gain, and try to quantify situations when it is advantageous. The analytical results are used in routing decisions and their effect in energy efficiency is validated using simulations. Moreover, we also quantify the gain achieved in terms of lifetime by considering overhead energy on power adjustable sensors for different environmental conditions. We show that the network lifetime can dramatically decrease, if the overhead energy component is neglected during routing decisions.

E. Ilker Oyman; Cem Ersoy

2004-01-01T23:59:59.000Z

124

CONSTRAINING THE DISTRIBUTION OF DARK MATTER IN THE INNER GALAXY WITH AN INDIRECT DETECTION SIGNAL: THE CASE OF A TENTATIVE 130 GeV {gamma}-RAY LINE  

SciTech Connect

Dark matter distribution in the very inner region of our Galaxy is still debated. In N-body simulations, a cuspy dark matter halo density profile is favored. Several dissipative baryonic processes, however, are found to be able to significantly flatten dark matter distribution, and a cored dark matter halo density profile is possible. Baryons dominate the gravitational potential in the inner Galaxy, hence a direct constraint on the abundance of dark matter particles is rather challenging. Recently, a few groups have identified a tentative 130 GeV line signal in the Galactic center, which could be interpreted as the signal of dark matter annihilation. Using current 130 GeV line data and adopting the generalized Navarro-Frenk-White profile of the dark matter halo-local dark matter density {rho}{sub 0} = 0.4 GeV cm{sup -3} and r{sub s} = 20 kpc-we obtain a 95% confidence level lower (upper) limit on the inner slope of dark matter density distribution, {alpha} = 1.06 (the cross section of dark matter annihilation into {gamma}-rays ({sigma}v){sub {chi}{chi}{sub {yields}{sub {gamma}{gamma}}}} = 1.3 Multiplication-Sign 10{sup -27} cm{sup 3} s{sup -1}). Such a slope is consistent with the results of some N-body simulations and, if the signal is due to dark matter, suggests that baryonic processes may be unimportant.

Yang Ruizhi; Feng Lei; Li Xiang; Fan Yizhong, E-mail: yzfan@pmo.ac.cn [Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008 (China)

2013-06-20T23:59:59.000Z

125

Evaluation of Emerging Line Inspection Technologies: Results of 2012 Outdoor Laboratory Tests  

Science Conference Proceedings (OSTI)

This report describes outdoor laboratory testing performed in 2012 to evaluate different approaches to establish conductor temperature during a helicopter-based Lidar field survey of an existing overhead transmission line. Establishing conductor temperature during Lidar surveys is necessary to assemble a line model to determine line sags, and thus clearances, under full rating and specified environmental conditions. ...

2013-09-26T23:59:59.000Z

126

Distribution:  

Office of Legacy Management (LM)

JAN26 19% JAN26 19% Distribution: OR00 Attn: h.H.M.Roth DFMusser ITMM MMMann INS JCRyan FIw(2) Hsixele SRGustavson, Document rocm Formal file i+a@mmm bav@ ~@esiaw*cp Suppl. file 'Br & Div rf's s/health (lic.only) UNITED STATES ATOMIC ENERGY COMMISSION SPECIAL NUCLEAB MATERIAL LICENSE pursuant to the Atomic Energy Act of 1954 and Title 10, Code of Federal Regulations, Chapter 1, P&t 70, "Special Nuclear Material Reg)llatiqm," a license is hereby issued a$hortztng the licensee to rekeive and possess the special nuclear material designated below; to use such special nuclear mat&ial for the purpose(s) and at the place(s) designated below; and to transfer such material to per&s authorized to receive it in accordance with the regula,tions in said Part.

127

High-Voltage Direct Current Line Conductor Optimization  

Science Conference Proceedings (OSTI)

Overhead transmission lines are designed to last for 40 years. Many ac lines in service today in North America are 70 or more years old. This survival rate is a result of conservative utility design practices and detailed product specifications. This reliability record has occurred despite a wide range of conductor types and sizes. In the present transmission system, there are far fewer high-voltage direct current (HVDC) lines, but those that have been designed and built have been similarly successful in...

2011-12-21T23:59:59.000Z

128

OTLOT Modules for HECO (Sub-Transmission & Distribution), Version 1.0  

Science Conference Proceedings (OSTI)

The HECO Overhead Transmission Line Inspection Online Training (OTLOT) Module, Version 1.0, is a CD or web-based application for training on overhead and underground line components and inspections. Description The HECO OTLOT Module provides approximately one hour of instruction to users. A browser interface helps the user navigate through the interactive training. As the user moves through the module, it provides instruction and assessment. At the end of the module, the user receives a final scored asse...

2008-12-19T23:59:59.000Z

129

Grain size distributions and photo-electric heating in ionised media  

E-Print Network (OSTI)

Ever since the pioneering study of Spitzer, it has been widely recognised that grains play an important role in the heating and cooling of photo-ionised environments. A detailed code is necessary to model grains in a photo-ionised medium. In this paper we will use the spectral synthesis code Cloudy for this purpose. The grain model of this code has recently undergone a comprehensive upgrade. Part of this is the newly developed hybrid grain charge model, which will be described in detail. This model allows discrete charge states of very small grains to be modelled accurately while simultaneously avoiding the overhead of fully resolving the charge distribution of large grains, thus making the model both accurate and computationally efficient. A comprehensive comparison with the fully resolved charge state models of Weingartner & Draine (2001) shows that the agreement is very satisfactory for realistic size distributions. The effect of the grain size distribution on the line emission from photo-ionised regio...

Van Hoof, P A M; Martin, P G; Volk, K; Ferland, G J

2004-01-01T23:59:59.000Z

130

EPRI Transmission Line Reference Book (Blue Book): 115-345 kV Compact Line Design  

Science Conference Proceedings (OSTI)

This report is an updated edition of the industry standard on overhead line compaction, the EPRI Transmission Line Reference Book: 115-138 kV Compact Line Design, commonly known as the Blue Book, which was last published in 1978. Publication of this new edition is the culmination of three years of research by a team of experts in the field. The report includes the latest information on research, technology, materials, and utility experience with compact lines. Note that this electronic report is being pu...

2007-12-13T23:59:59.000Z

131

Beam-line cryopump  

DOE Green Energy (OSTI)

A cryopumping module using metallic surfaces at liquid helium temperature for condensation of hydrogen and deuterium gas has been constructed. This pump, a prototype of four units which will provide pumping for the Livermore 200 kV test stand, will be used to verify the concept and establish engineering parameters. Upon completion of engineering tests and evaluation the pump will be installed in an operating beam line. The design point pumping capacity is 80,000 liters per second for hydrogen and deuterium at 10$sup -4$ torr based on sticking coefficients of 0.15 and 0.25, respectively. Both the liquid helium temperature pumping surface and the liquid nitrogen temperature radiation shields are constructed of quilted double wall cylindrical shells. The pumping shell dimensions are 1.5 meters dia. x 0.6 meters long. Cryogen circulation is convection current driven in both cases. Liquid helium is supplied from an overhead Dewar through bayonet coupling. In the 200 kV beam line, pumping modules will be supplied via transfer lines from a central Dewar. Voltage standoff will be accomplished in the transfer lines. (auth)

Duffy, T.J.; Oddon, L.D.

1975-11-12T23:59:59.000Z

132

LPAT: An interactive simulation tool for assessing the lightning performance of Hellenic high voltage transmission lines  

Science Conference Proceedings (OSTI)

The paper presents the Lightning Performance Assessment Tool (LPAT), an interactive simulation tool which assesses the lightning performance of high voltage transmission lines. The LPAT design was based on a recently published methodology that has been ... Keywords: Lightning performance, Optical transient density, Overhead transmission lines, Simulation, Software tool, User interface

P. Karampelas; L. Ekonomou; S. Panetsos; G. E. Chatzarakis

2011-01-01T23:59:59.000Z

133

Electric power high-voltage transmission lines: Design options, cost, and electric and magnetic field levels  

SciTech Connect

This report provides background information about (1) the electric and magnetic fields (EMFs) of high-voltage transmission lines at typical voltages and line configurations and (2) typical transmission line costs to assist on alternatives in environmental documents. EMF strengths at 0 {+-} 200 ft from centerline were calculated for ac overhead lines, and for 345 and 230-kV ac underground line and for a {+-}450-kV dc overhead line. Compacting and height sensitivity factors were computed for the variation in EMFs when line conductors are moved closer or raised. Estimated costs for the lines are presented and discussed so that the impact of using alternative strategies for reducing EMF strengths and the implications of implementing the strategies can be better appreciated.

Stoffel, J.B.; Pentecost, E.D.; Roman, R.D.; Traczyk, P.A.

1994-11-01T23:59:59.000Z

134

Guide for Operating Lines at High Temperatures: 2013 Update  

Science Conference Proceedings (OSTI)

Faced with difficulties in acquiring rights-of-way and reduced capital budgets for new transmission lines, many electric energy companies are seeking ways to extract more capacity from existing systems. One option for increasing power flow is to operate overhead transmission lines at higher temperatures than originally designed, an inexpensive option that can be accomplished quickly. It is, however, important that utilities understand the short- and long-term effects of high operating temperatures ...

2013-12-09T23:59:59.000Z

135

Guide for the Application of Transmission Line Surge Arrestors  

Science Conference Proceedings (OSTI)

Lightning flashovers are the most frequent cause of transmission line outages, resulting in a direct cost to utilities of more than $1 billion per year in damaged or destroyed equipment. There are also substantial indirect costs involved due to the reduction in power quality caused by frequent lightning outages. The lightning performance of transmission lines is usually improved by installing overhead ground or shield wires or by increasing the tower footing resistance; however, in some cases, these meas...

2009-12-21T23:59:59.000Z

136

Strategy for Updating EPRI's Transmission Line Reference Book: 115-138-kV Compact Line Design ("The Blue Book")  

Science Conference Proceedings (OSTI)

EPRI is sponsoring development of a new, updated edition of the Transmission Line Reference Book: 115-138 kV Compact Line Design, commonly known as the "Blue Book," which was originally published in 1978. The new edition will provide the most up-to-date technical information and practices on the design and maintenance of compact overhead lines. It will enable energy companies to construct cost-effective compact lines that produce optimal performances and to address the ability to maintain compact lines w...

2006-10-30T23:59:59.000Z

137

Mutual Design Considerations for Overhead AC Transmission Lines and Gas Transmission Pipelines, Volume 2: Prediction and Mitigation Procedures  

Science Conference Proceedings (OSTI)

Presents concise information on the prediction and mitigation of voltages and currents that were electromagnetically induced in pipelines.

1978-09-01T23:59:59.000Z

138

Predicting the Failure of Line Post Insulator Mounting Studs Due to Aeolian Vibrations  

Science Conference Proceedings (OSTI)

This report provides experimental and numerical investigations of the line post insulator stud failures experienced by APS (Arizona Public Service) on its 69kV and 22 kV overhead power lines. The project developed a numerical model conforming to the dynamics of a line post insulator and the coupling between neighboring spans. This model can be used in estimating the dynamic loads induced on a line post insulator from Aeolian (wind-induced) vibration.

2006-06-07T23:59:59.000Z

139

Distribution Library--Wood Poles  

Science Conference Proceedings (OSTI)

EPRI has sponsored research and published information on a wide variety of topics related to wood poles for overhead lines. Many of these resources, particularly older publications, are difficult for EPRI members to find and use. To help ensure retention of this valuable knowledge base, EPRI sponsored the project reported herein to capture this information and make it accessible in an easy-to-use electronic media (E-Media) repository.

2005-12-22T23:59:59.000Z

140

Financing, Overhead, and Profit: An In-Depth Discussion of Costs Associated with Third-Party Financing of Residential and Commercial Photovoltaic Systems  

SciTech Connect

Previous work quantifying the non-hardware balance-of-system costs -- or soft costs -- associated with building a residential or commercial photovoltaic (PV) system has left a significant portion unsegmented in an 'other soft costs' category. This report attempts to better quantify the 'other soft costs' by focusing on the financing, overhead, and profit of residential and commercial PV installations for a specific business model. This report presents results from a bottom-up data-collection and analysis of the upfront costs associated with developing, constructing, and arranging third-party-financed residential and commercial PV systems. It quantifies the indirect corporate costs required to install distributed PV systems as well as the transactional costs associated with arranging third-party financing.

Feldman, D.; Friedman, B.; Margolis, R.

2013-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "overhead distribution lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

A scalable organization for distributed directories  

Science Conference Proceedings (OSTI)

Although directory-based cache-coherence protocols are the best choice when designing chip multiprocessors with tens of cores on-chip, the memory overhead introduced by the directory structure may not scale gracefully with the number of cores. Many approaches ... Keywords: Cache coherence, Chip multiprocessors, Distributed directory, Duplicate tags, Implicit replacements, Many-core CMPs, Scalability

Alberto Ros; Manuel E. Acacio; Jos M. Garca

2010-02-01T23:59:59.000Z

142

Comparison of prediction and measurement of negative sequence currents of generators connected to 345-kV asymmetrical transmission lines  

Science Conference Proceedings (OSTI)

This paper is used to evaluate the negative sequence currents (NSC) of two generators in a generation plant, which are connected to the power pool through four over-head asymmetrical 345-kV transmission lines. The simulation results by using PSS/E and ... Keywords: EMTP, PSS/E, asymmetrical transmission lines, negative sequence current, unbalance

Chi-Jui Wu; Ping-Heng Ho

2011-03-01T23:59:59.000Z

143

EGGS (Guide for Transmission Line Grounding: A Roadmap for Design Testing and Remediation), Version 2.1  

Science Conference Proceedings (OSTI)

The EPRI Grounding Guide Software (EGGS), Version 2.1, is calculation/modeling software for transmission line grounding. EGGS Version 2.1, is a set of applets to assist technical staff in the design and implementation of effective grounding of transmission lines and is intended for users who need simple methods to evaluate new or existing transmission line grounding electrode designs. When ordering EGGS 2.1, included will be product 1018973, EPRIs Overhead Transmission Line Lightning and Grounding Refere...

2008-12-22T23:59:59.000Z

144

A Case Study on the Effects of Distribution Line Capacitors on Substation Bus Voltage Regulated with a Load Tap Changing (LTC) Power Transformer: Southern Company Smart Grid Demonstration  

Science Conference Proceedings (OSTI)

This case study describes research to address the adverse effects of distribution capacitors on substation bus voltage with a load-tap-changing (LTC) power transformer. By adding fixed and switched capacitors to the distribution system, Southern Company is able to maintain an efficient distribution grid by providing the reactive power near the end-use devices consuming this power. However, pressure to improve the efficiency of the distribution system has resulted in Southern Company adding a large ...

2013-12-12T23:59:59.000Z

145

Motion planning of inspection robot suspended on overhead ground wires for obstacle-navigation  

Science Conference Proceedings (OSTI)

The purpose of inspection robot for power transmission lines is to check running state and find damages of extra-high voltage (EHV) power transmission lines equipment. The key of the control design is how to design a robot for obstacles navigation. This ... Keywords: centroid adjustment, inspection robot, obstacles navigation automatically, power transmission line

Ren Zhi-Bin; Ruan Yi; Li Zheng; Yang Yong

2009-06-01T23:59:59.000Z

146

Ratings of Transmission Lines: Applications, Computations, and Thermal Models  

Science Conference Proceedings (OSTI)

The thermal rating of overhead transmission lines can be complex, because there is no way to directly measure the line rating and because high current load events occur only rarely in most parts of the power system. A thermal line rating is a prediction of how the conductor will behave thermally, mechanically, and electrically in the event of a high electrical current. It is possible to calculate ratings incorrectly and not discover that this is true until a most inopportune timeduring a system emergency...

2011-12-16T23:59:59.000Z

147

Optimization of Transmission Line Design Using Life Cycle Costing  

Science Conference Proceedings (OSTI)

When an overhead line is designed, all costs incurred during the expected life of the line should be considered. The total cost during the life or life-cycle cost of a transmission line is a combination of the initial capital cost, operation and maintenance (O&M) cost, cost of electrical losses over its entire life, and dependability associated costs. The option that has the lowest life-cycle cost is selected as the optimized design. A tool is required by utility engineers to help them readily select an ...

2009-12-22T23:59:59.000Z

148

Optimization of Transmission Line Design Using Life-Cycle Costing  

Science Conference Proceedings (OSTI)

When an overhead line is designed, all costs incurred during the expected life of the line should be considered. The total cost during the life, or life-cycle cost, of a transmission line is a combination of the initial capital cost, operation and maintenance (O&M) cost, cost of electrical losses over its entire life, and dependability-associated costs. The option that has the lowest life-cycle cost is selected as the optimized design. A tool is required by utility engineers to help them readily select a...

2008-12-09T23:59:59.000Z

149

Ga-based passive loop optimization for magnetic field mitigation of transmission lines  

Science Conference Proceedings (OSTI)

This paper presents a systematic method to assist in the design of passive loops with the aim of mitigating the magnetic field generated by overhead transmission lines. The procedure is based on a two-dimensional (2D) modeling of the magnetic field, ... Keywords: Compensated loop, Genetic algorithm, Magnetic field, Mitigation, Passive loop, Reduction factor

Pedro Cruz; Jess M. Riquelme; Antonio de la Villa; Jos L. Martnez

2007-10-01T23:59:59.000Z

150

Machine learning methods for the estimation of weather and animal-related power outages on overhead distribution feeders.  

E-Print Network (OSTI)

??Because a majority of day-to-day activities rely on electricity, it plays an important role in daily life. In this digital world, most of the peoples (more)

Kankanala, Padmavathy

2013-01-01T23:59:59.000Z

151

Underfloor vs. overhead: a comparative analysis of air distribution systems using the EnergyPlus simulation software  

E-Print Network (OSTI)

======== MATERIAL:REGULAR, BLBD - PLYWOOD 3 / 4 IN, ! - NameVariableR-SubFlr, BLBD - PLYWOOD 3 / 4 IN; ! Name ! OutsideVisible MATERIAL:REGULAR, BLBD - PLYWOOD 1 / 2 IN, ! - Name

Daly, A.

2006-01-01T23:59:59.000Z

152

Proposed Project: Plains & Eastern Clean Line | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Section 1222 of the Energy Policy Act 2005 » Proposed Project: Plains & Section 1222 of the Energy Policy Act 2005 » Proposed Project: Plains & Eastern Clean Line Proposed Project: Plains & Eastern Clean Line On June 10, 2010, the Department of Energy published in the Federal Register a Request for Proposals (RFP) for New or Upgraded Transmission Line Projects Under Section 1222 of the Energy Policy Act (EPAct) of 2005. In response, Clean Line Energy Partners, LLC submitted an application for its Plains & Eastern Clean Line project. DOE has concluded that Clean Line's proposal was responsive to the RFP, and it is currently under consideration. The proposed Plains & Eastern Clean Line project (the proposed project) would include an overhead +/- 600 kV direct current electric transmission system and associated facilities with the capacity to deliver approximately

153

A timed mobile agent planning approach for distributed information retrieval in dynamic network environments  

Science Conference Proceedings (OSTI)

The number of mobile agents and total execution time are two factors used to represent the system overhead that must be considered as part of mobile agent planning (MAP) for distributed information retrieval. In addition to these two factors, the time ... Keywords: Distributed computing, Distributed information retrieval, Internet and mobile computing, Mobile agents, P2P computing

Jin-Wook Baek; Heon Y. Yeom

2006-11-01T23:59:59.000Z

154

Definition: Distribution Factor | Open Energy Information  

Open Energy Info (EERE)

Also Known As Transfer Distribution Factor Related Terms Interchange Transaction, transmission lines, facility, Interchange, transmission line, flowgate, smart grid...

155

Grain size distributions and photo-electric heating in ionized media  

E-Print Network (OSTI)

Ever since the pioneering study of Spitzer, it has been widely recognized that grains play an important role in the heating and cooling of photo-ionized environments. A detailed code is necessary to model grains in a photo-ionized medium. In this paper we will use the spectral synthesis code Cloudy for this purpose. The grain model of this code has recently undergone a comprehensive upgrade. Part of this is the newly developed hybrid grain charge model, which will be described in detail. This model allows discrete charge states of very small grains to be modelled accurately while simultaneously avoiding the overhead of fully resolving the charge distribution of large grains, thus making the model both accurate and computationally efficient. A comprehensive comparison with the fully resolved charge state models of Weingartner & Draine (2001) shows that the agreement is very satisfactory for realistic size distributions. The effect of the grain size distribution on the line emission from photo-ionized regions is studied by taking standard models for an H II region and a planetary nebula and adding a dust component to the models with varying grain size distributions. A comparison of the models shows that varying the size distribution has a dramatic effect on the emitted spectrum, and affects the ionization balance as well. These results clearly demonstrate that the grain size distribution is an important parameter in photo-ionization models.

P. A. M. van Hoof; J. C. Weingartner; P. G. Martin; K. Volk; G. J. Ferland

2004-02-16T23:59:59.000Z

156

Help Line  

NLE Websites -- All DOE Office Websites (Extended Search)

Help Line Help Line Ombuds Help Line Committed to the fair and equitable treatment of all employees, contractors, and persons doing business with the Laboratory. Contact Ombuds Office (505)665-2837 Email Help Line (505) 667-9370 Fax (505) 667-3119 Map & Hours Help Line: (505) 667-9370 As an option to visiting the Ombuds office, we provide service through a telephone Help Line and email. The telephone Help Line is useful for individuals who have concerns and want advice or referral while preserving confidentiality and anonymity. Callers may remain anonymous and the Help Line does not have caller ID or other methods of identifying callers. The Help Line maintains the same level of confidentiality and neutrality as the other Ombuds services. The Ombuds Help Line is not for reporting emergencies or officially

157

Accelerated Publication: Ag nanoparticle-based inkjet printed planar transmission lines for RF and microwave applications: Considerations on ink composition, nanoparticle size distribution and sintering time  

Science Conference Proceedings (OSTI)

Sintering of Ag nanoparticle (NP)-based inkjet printed tracks is a crucial process for the next-generation digitally printed electronics. In particular, while the digital printing, as additive technology, is now well settled for what concerns either ... Keywords: Inkjet printing, Microwave planar transmission lines, Real-time measurements, Silver nanoparticles

A. Chiolerio; M. Cotto; P. Pandolfi; P. Martino; V. Camarchia; M. Pirola; G. Ghione

2012-09-01T23:59:59.000Z

158

Sensor, method and system of monitoring transmission lines  

SciTech Connect

An apparatus, method, and system for measuring the magnetic field produced by phase conductors in multi-phase power lines. The magnetic field measurements are used to determine the current load on the conductors. The magnetic fields are sensed by coils placed sufficiently proximate the lines to measure the voltage induced in the coils by the field without touching the lines. The x and y components of the magnetic fields are used to calculate the conductor sag, and then the sag data, along with the field strength data, can be used to calculate the current load on the line and the phase of the current. The sag calculations of this invention are independent of line voltage and line current measurements. The system applies a computerized fitter routine to measured and sampled voltages on the coils to accurately determine the values of parameters associated with the overhead phase conductors.

Syracuse, Steven J.; Clark, Roy; Halverson, Peter G.; Tesche, Frederick M.; Barlow, Charles V.

2012-10-02T23:59:59.000Z

159

Design of artificial neural networks for distribution feeder loss analysis  

Science Conference Proceedings (OSTI)

To enhance the efficiency for power loss analysis of voluminous distribution feeders, ANN-based simplified power loss models with the Levenberg-Marquardt (LM) algorithm have been developed for overhead feeders and underground feeders, respectively. The ... Keywords: Artificial neural network, Customer information system, Levenberg-Marquardt algorithm, Outage management system

Tsung-En Lee; Chin-Ying Ho; Chia-Hung Lin; Meei-Song Kang

2011-11-01T23:59:59.000Z

160

EIS-0486: Plains & Eastern Clean Line Transmission Project  

Energy.gov (U.S. Department of Energy (DOE))

This EIS will evaluate the potential environmental impacts of participating with Clean Line Energy Partners LLC (Clean Line) in the proposed Plains & Eastern Project. The proposed project would include an overhead 600 kilovolt (kV) high voltage direct current (HVDC) electric transmission system and associated facilities with the capacity to deliver approximately 3,500 megawatts (MW) primarily from renewable energy generation facilities in the Oklahoma Panhandle region to load-serving entities in the Mid-South and Southeast via an interconnection with the Tennessee Valley Authority (TVA).

Note: This page contains sample records for the topic "overhead distribution lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

High Voltage Direct Current Live Line and Insulator Testing  

Science Conference Proceedings (OSTI)

This report has two main parts. The focus of the first part is on live work in overhead high-voltage direct current (HVDC) lines operating above 100 kV dc. It does not address issues related to lines for electric transport that typically operate below 60 kV dc worldwide. In addition, this first part of the report is not a detailed treatise on live work but, rather, addresses the main issues related to dc live work. More detailed information on the general topic of live work can be found in the references...

2011-12-23T23:59:59.000Z

162

No compelling evidence of distributed production of CO in comet C/1995 O1 (Hale-Bopp) from millimeter interferometric data and a reanalysis of near-IR lines  

E-Print Network (OSTI)

Based on long-slit infrared spectroscopic observations, it has been suggested that half of the carbon monoxide present in the atmosphere of comet C/1995 O1 (Hale-Bopp) close to perihelion was released by a distributed source in the coma, whose nature (dust or gas) remains unidentified. We re-assess the origin of CO in Hale-Bopp's coma from millimeter interferometric data and a re-analysis of the IR lines. Simultaneous observations of the CO J(1-0) (115 GHz) and J(2-1) (230 GHz) lines were undertaken with the IRAM interferometer in single-dish and interferometric modes. The diversity of angular resolutions (from 1700 to 42000 km diameter at the comet) is suitable to study the radial distribution of CO and detect the extended source observed in the infrared. We used excitation and radiative transfer models to simulate the observations. Various CO density distributions were considered, including 3D time-dependent hydrodynamical simulations which reproduce a CO rotating jet. The CO J(1-0) and J(2-1) observations ...

Bockele-Morvan, D; Biver, N; Crovisier, J

2010-01-01T23:59:59.000Z

163

Transmission Line Grounding  

Science Conference Proceedings (OSTI)

In 2008, the Electric Power Research Institute (EPRI) published a comprehensive grounding report. Published in two parts, the report covered the theoretical and practical aspects of transmission line grounding practices. To further improve the tools available for grounding analysis, an investigation into practical ways to calculate the fault current distribution and ground potential rise of the transmission line grounding system was conducted. Furthermore, a survey of utilities has documented industry pr...

2011-12-23T23:59:59.000Z

164

Performance Evaluation for Modular, Scalable Overhead Cooling Systems In Data Centers  

Science Conference Proceedings (OSTI)

Scientific and enterprise data centers, IT equipment product development, and research data center laboratories typically require continuous cooling to control inlet air temperatures within recommended operating levels for the IT equipment. The consolidation and higher density aggregation of slim computing, storage and networking hardware has resulted in higher power density than what the raised-floor system design, coupled with commonly used computer rack air conditioning (CRAC) units, was originally conceived to handle. Many existing data centers and newly constructed data centers adopt CRAC units, which inherently handle heat transfer within data centers via air as the heat transfer media. This results in energy performance of the ventilation and cooling systems being less than optimal. Understanding the current trends toward higher power density in IT computing, more and more IT equipment manufacturers are designing their equipment to operate in 'conventional' data center environments, while considering provisions of alternative cooling solutions to either their equipment or supplemental cooling in rack or row systems. Naturally, the trend toward higher power density resulting from current and future generations of servers has, in the meanwhile, created significant opportunities for precision cooling suppliers to engineer and manufacture packaged modular and scalable systems. The modular and scalable cooling systems aim at significantly improving efficiency while addressing the thermal challenges, improving reliability, and allowing for future needs and growth. Such pre-engineered and manufactured systems may be a significant improvement over current design; however, without an energy efficiency focus, their applications could also lead to even lower energy efficiencies in the overall data center infrastructure. The overall goal of the project supported by California Energy Commission was to characterize four commercially available, modular cooling systems installed in a data center. Such modular cooling systems are all scalable localized units, and will be evaluated in terms of their operating energy efficiency in a real data center, respectively, as compared to the energy efficiency of traditional legacy data center cooling systems. The technical objective of this project was to evaluate the energy performance of one of the four commercially available modular cooling systems installed in a data center in Sun Microsystems, Inc. This report is the result of a test plan that was developed with the industrial participants' input, including specific design and operating characteristics of the selected modular localized cooling solution provided by vendor 1. The technical evaluation included monitoring and measurement of selected parameters, and establishing and calculating energy efficiency metrics for the selected cooling product, which is a modular, scalable overhead cooling system. The system was tested in a hot/cold aisle environment without separation, or containment or the hot or cold aisles. The scope of this report is to quantify energy performance of the modular cooling unit in operation as it corresponds to a combination of varied server loads and inlet air temperatures. The information generated from this testing when combined with a concurrent research study to document the energy efficiency of the host data center's central chilled water cooling plant can be used to estimate potential energy savings from implementing modular cooling compared to conventional cooling in data centers.

Xu, TengFang T.

2009-05-01T23:59:59.000Z

165

Fiber Optic Cables in Overhead Transmission Corridors: A State-of-the-Art Review  

Science Conference Proceedings (OSTI)

Many electric utilities are installing high capacity fiber optic cables and wires on their high voltage lines to satisfy their own internal communication needs and to gain additional revenues by leasing excess capacity to telecommunication network providers. This report presents a review and evaluation of the state-of-the-art in using fiber optic technology in high voltage corridors.

1997-11-26T23:59:59.000Z

166

Distribution Conductor Burndown Test Results  

Science Conference Proceedings (OSTI)

On overhead distribution circuits, conductor burndown is a well-documented phenomenon. Two systems are especially vulnerable to burndown: covered conductors (also known as tree wires or coated conductors) and small bare wires. In a burndown scenario, a power-follow arc develops on the system, with at least one end of the arc attached to a conductor. The arc heats the conductor, which causes the strands to anneal and lose tensile strength. The burndown event results in the strands breaking and the conduct...

2009-12-09T23:59:59.000Z

167

Evaluation of Heat Stress and Strain in Electric Utility Workers  

E-Print Network (OSTI)

inside vaults or on overhead lines. Their typical activitiestogether or to overhead transmission lines. Installing watt-

Brown, Eric Nicholas

2013-01-01T23:59:59.000Z

168

Nonthermal effects on hydrogen-line profiles  

DOE Green Energy (OSTI)

Experimentally determined level populations of hydrogen excited states from a low-density Z pinch are used as initial conditions in a simulation to derive electron-velocity distributions. These velocity distributions show excess electrons in the high velocity end of the distribution when compared to a Maxwellian velocity distribution. The non-Maxwellian velocity distributions are used to find the nonequilibrium structure factors which are a main component in the plasma line broadening of hydrogen lines. The line profiles generated using the structure factors show plasmon satellites on the wings of the Balmer-..cap alpha..- and -..beta..-line profiles.

Lee, R.W.; Morgan, W.L.

1985-07-01T23:59:59.000Z

169

Transmission Line Protection Support Tools: Fault Location Algorithms and the Potential of Using Intelligent Electronic Device Data for Protection Applications  

Science Conference Proceedings (OSTI)

Overhead transmission lines experience short-circuit faults due to lightning, stormy weather conditions, animal or tree contact, and insulation failure in power system equipment. To ensure continuity of electric service, utilities try to quickly determine the location of the fault, perform maintenance or repair, and return the line to service. Due to advances in modern technology, locating faults in a networked transmission system is now possible with substantial accuracy. Voltage and current ...

2013-12-23T23:59:59.000Z

170

Evaluating the Overheads of Source-Directed Quality-of-Service Routing  

E-Print Network (OSTI)

Rexford ¡ Kang G. Shin Department of Electrical Engineering ¡ Network Mathematics Research network resource usage but effective path-selection schemes require the distribution of link-state in at the packet or cell level. Complementing these lower-level mechanisms, rout- ing and signalling protocols

Rexford, Jennifer

171

line, Pinal County, Arizona RECORD OF CATEGORICAL EXCLUSION DETERMINATION  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

along the existing along the existing Empire-EDS 11S-kV transmission line, Pinal County, Arizona RECORD OF CATEGORICAL EXCLUSION DETERMINATION A. Proposed Action: Western proposes to replace structures and upgrade to a double circuit 230-kV transmission line on its Empire-ED5 115-kV transmission line, within Western's existing right-of-way. This will include the rebuild of 9.2 miles of transmission line, replacing the H-frame structures with steel monopole structures with foundations, hardware and insulator replacement and adding a overhead ground-wire over the entire length of the project. Western will access the structure using crew trucks along the existing access roads. This work is necessary to maintain the safety and reliability of the bulk electrical system.

172

Sidney-North Yuma 230-kV Transmission Line Project, Colorado and Nebraska  

SciTech Connect

This report describes the need for a 230-kV overhead transmission line to supply power from Sidney, Nebraska to eastern Colorado. The alternative scenario compared to construction of the line is No Action. Rejected alternatives include underground lines and different routing paths, with a possible extension to the Sterling area. Both scenarios are evaluated for environmental effects, cost, and consequences for the eastern Colorado region. The proposed route is determined to be the environmentally preferred choice. 120 refs., 6 figs., 13 tabs. (MHB)

1991-06-01T23:59:59.000Z

173

NIST: Atomic Spectros. - Spectral Line Shapes, etc.  

Science Conference Proceedings (OSTI)

... For a Maxwellian velocity distribution, the line shape is Gaussian; the full width at ... Shapes are often approximately Lorentzian, ie, I(?) ? {1 + [(? - ? 0 ...

174

Managing Transmission Line Wood Structures  

Science Conference Proceedings (OSTI)

The objective of this project is to reduce capital cost by extending life expectancy of overhead transmission wood structures through inspection and assessment procedures and through aging mitigation techniques and tools.

2005-11-29T23:59:59.000Z

175

Definition: Distribution Provider | Open Energy Information  

Open Energy Info (EERE)

but rather as performing the Distribution function at any voltage.1 Related Terms transmission lines, transmission line References Glossary of Terms Used in Reliability...

176

BEAM LINE  

NLE Websites -- All DOE Office Websites (Extended Search)

BEAM LINE BEAM LINE 45 W ILHELM ROENTGEN'S INITIAL DISCOVERY of X-radiation in 1895 led immediately to practical applications in medicine. Over the next few decades X rays proved to be an invaluable tool for the investigation of the micro-world of the atom and the development of the quantum theory of matter. Almost a century later, telescopes designed to detect X-radiation are indispensable for understanding the structure and evolution of the macro-world of stars, galaxies, and the Universe as a whole. The X-Ray Universe by WALLACE H. TUCKER X-ray images of the Universe are strikingly different from the usual visible-light images. 46 SUMMER 1995 did not think: I investigated." Undeterred by NASA's rejection of a proposal to search for cosmic X-radiation, Giacconi persuaded the

177

Clustering of wireless sensor and actor networks based on sensor distribution and connectivity  

Science Conference Proceedings (OSTI)

Wireless Sensor and Actor Networks (WSANs) employ significantly more capable actor nodes that can collect data from sensors and perform application specific actions. To take these actions collaboratively at any spot in the monitored regions, maximal ... Keywords: Actor placement, Clustering, Connectivity, Energy-efficiency, Messaging overhead, Sensor distribution, Wireless sensor and actor networks

Kemal Akkaya; Fatih Senel; Brian McLaughlan

2009-06-01T23:59:59.000Z

178

A Cyclic Distributed Garbage Collector for Network Objects  

E-Print Network (OSTI)

Abstract. This paper presents an algorithm for distributed garbage collection and outlines its implementation within the Network Objects system. The algorithm is based on a reference listing scheme, which is augmented by partial tracing in order to collect distributed garbage cycles. Processes may be dynamically organised into groups, according to appropriate heuristics, to reclaim distributed garbage cycles. The algorithm places no overhead on local collectors and suspends local mutators only brie y. Partial tracing of the distributed graph involves only objects thought to be part of a garbage cycle: no collaboration with other processes is required. The algorithm o ers considerable exibility, allowing expediency and fault-tolerance to be traded against completeness.

Helena Rodrigues; Richard Jones

1996-01-01T23:59:59.000Z

179

EA-1679: Grand Coulee's Third Powerplant 500-kV Transmission Line  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

79: Grand Coulee's Third Powerplant 500-kV Transmission Line 79: Grand Coulee's Third Powerplant 500-kV Transmission Line Replacement Project, Grant and Okanogon Counties, Washington EA-1679: Grand Coulee's Third Powerplant 500-kV Transmission Line Replacement Project, Grant and Okanogon Counties, Washington Summary This EA evaluates potential environmental impacts from the construction and operation of six new 500-kV overhead transmission lines to replace six existing underground lines at Grand Coulee Dam. DOE's Bonneville Power Administration (BPA), a cooperating agency, was asked by the U. S. Department of the Interior's Bureau of Reclamation to design and construct the proposed new transmission lines. A Finding of No Significant Impact was issued by BPA in December 2011. BPA website: http://efw.bpa.gov/environmental_services/Document_Library/Grand_Coulee/

180

A study of Nanofilled Silicone Dielectrics for Outdoor Insulation.  

E-Print Network (OSTI)

??Polymeric insulators are now a common replacement for conventional porcelain and glass string insulators on overhead distribution and transmission lines. The use of this mature (more)

Ramirez Vazquez, Isaias

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "overhead distribution lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

978-1-4244-2677-5/08/$25.00 2008 IEEE 1 of 7 ON MODELING ENERGY-SECURITY TRADE-OFFS FOR DISTRIBUTED  

E-Print Network (OSTI)

will increase the energy spent on overhead. A distributed solution is thus highly desirable. In this work, we and type of instructions in an IDS algorithm; (b) propose an energy efficient, distributed monitoring978-1-4244-2677-5/08/$25.00 ©2008 IEEE 1 of 7 ON MODELING ENERGY-SECURITY TRADE

Jaffrès-Runser, Katia

182

Big George to Carter Mountain 115-kV transmission line project, Park and Hot Springs Counties, Wyoming. Environmental Assessment  

SciTech Connect

The Western Area Power Administration (Western) is proposing to rebuild, operate, and maintain a 115-kilovolt (kV) transmission line between the Big George and Carter Mountain Substations in northwest Wyoming (Park and Hot Springs Counties). This environmental assessment (EA) was prepared in compliance with the National Environmental Policy Act (NEPA) and the regulations of the Council on Environmental Quality (CEQ) and the Department of Energy (DOE). The existing Big George to Carter Mountain 69-kV transmission line was constructed in 1941 by the US Department of Interior, Bureau of Reclamation, with 1/0 copper conductor on wood-pole H-frame structures without an overhead ground wire. The line should be replaced because of the deteriorated condition of the wood-pole H-frame structures. Because the line lacks an overhead ground wire, it is subject to numerous outages caused by lightning. The line will be 54 years old in 1995, which is the target date for line replacement. The normal service life of a wood-pole line is 45 years. Under the No Action Alternative, no new transmission lines would be built in the project area. The existing 69-kV transmission line would continue to operate with routine maintenance, with no provisions made for replacement.

1994-02-01T23:59:59.000Z

183

Distributed Systems for Energy Management  

NLE Websites -- All DOE Office Websites (Extended Search)

buildings-to-grid, responsive loads, on-line monitoring of efficiency programs, microgrids, and other forms of distributed resource management. A key challenge will be the...

184

Ad Hoc Distributed Simulations  

Science Conference Proceedings (OSTI)

An ad hoc distributed simulation is a collection of autonomous on-line simulations brought together to model an operational system. They offer the potential of increased accuracy, responsiveness, and robustness compared to centralized approaches. They ...

Richard Fujimoto; Michael Hunter; Jason Sirichoke; Mahesh Palekar; Hoe Kim; Wonho Suh

2007-06-01T23:59:59.000Z

185

Sierra Pacific Power Company Alturas Transmission Line Project, Final Environmental Impact Report/Environmental Impact Statement. Volume 3: Appendices  

Science Conference Proceedings (OSTI)

Sierra Pacific Power Company has proposed the construction and operation of a 345,000 volt overhead electric power transmission line from Alturas, California to Reno, Nevada. This Environmental Impact Report/Environmental Impact Statement will assess the potential environmental impacts of the proposed project and alternatives. This report contains Appendices A--I which contain the following: glossary/abbreviations; scoping report; structure coordinate summary; air quality; biological resources; geology; noise; visual contrast rating forms; and cultural resources.

NONE

1995-11-01T23:59:59.000Z

186

Pilot Study for the Replication of the Draper Study of Leukemia, Brain Tumors, and Distance to Power Lines in California  

Science Conference Proceedings (OSTI)

In 2005, a study in the United Kingdom, referred to in this report as the Draper study, reported a positive association between residential proximity to overhead transmission lines and childhood leukemia. This report describes a pilot study that was performed to determine the feasibility of replicating this study in California. The purpose of this pilot study was to identify potential difficulties with performing this type of an evaluation in California and to design a rigorous and cost-effective methodo...

2008-02-28T23:59:59.000Z

187

CHAPTER III OVERHEAD ORGANIZATION  

Science Conference Proceedings (OSTI)

... These positions frequently pay well and are political sinecures, eagerly ... of the personnel from political domination, the stimulation of applications ...

2010-03-19T23:59:59.000Z

188

Overhead Conductor Management Guide  

Science Conference Proceedings (OSTI)

As transmission systems age, utilities are increasingly concerned about the reliability of aging conductors, especially ACSR conductors, which cannot be assessed visually because of the layers of aluminum strand that cover their cores. Utilities wishing to determine how much core strength remains in these conductors can only do so by sampling the conductor and subsequently subjecting it to tensile testing or by looking at the significant circuits that pose a reliability risk using the Cormon Device or El...

2010-12-23T23:59:59.000Z

189

EIS-0486: Plains & Eastern Clean Line Transmission Project | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

86: Plains & Eastern Clean Line Transmission Project 86: Plains & Eastern Clean Line Transmission Project EIS-0486: Plains & Eastern Clean Line Transmission Project SUMMARY This EIS will evaluate the potential environmental impacts of participating with Clean Line Energy Partners LLC (Clean Line) in the proposed Plains & Eastern Project. The proposed project would include an overhead ± 600 kilovolt (kV) high voltage direct current (HVDC) electric transmission system and associated facilities with the capacity to deliver approximately 3,500 megawatts (MW) primarily from renewable energy generation facilities in the Oklahoma Panhandle region to load-serving entities in the Mid-South and Southeast via an interconnection with the Tennessee Valley Authority (TVA). PUBLIC COMMENT OPPORTUNITIES None available at this time.

190

Effective Daylighting: Evaluating Daylighting Performance in the San Francisco Federal Building from the Perspective of Building Occupants  

E-Print Network (OSTI)

Horizontal lines indicate location of overhead luminaires.horizontal lines indicate location of overhead luminaires.overhead electrical lighting was at full output. The horizontal line

Konis, Kyle Stas

2011-01-01T23:59:59.000Z

191

Aspects of the Biology and the Effects of Traditional and Non-Traditional Insecticides on Citrus Thrips and Avocado Thrips with the Objective of Improving Integrated Pest Management  

E-Print Network (OSTI)

rows where the overhead sprinkler line was turned off. Therows where the overhead sprinkler line was turned off. Thealone versus (2) drip-line with overhead sprinkler, because

Zahn, Deane K.

2011-01-01T23:59:59.000Z

192

Structure and Evolution of Winter Cyclones in the Central United States and Their Effects on the Distribution of Precipitation. Part III: The Development of a Squall Line Associated with Weak Cold Frontogenesis Aloft  

Science Conference Proceedings (OSTI)

From 8 to 9 March 1992 cold frontogenesis aloft (CFA), which was associated with the development of a vigorous baroclinic wave, triggered a series of squall lines that produced large hail and several tornadoes as they moved across the central ...

John D. Locatelli; Jonathan E. Martin; Jeffrey A. Castle; Peter V. Hobbs

1995-09-01T23:59:59.000Z

193

Theoretical Atomic Physics code development IV: LINES, A code for computing atomic line spectra  

SciTech Connect

A new computer program, LINES, has been developed for simulating atomic line emission and absorption spectra using the accurate fine structure energy levels and transition strengths calculated by the (CATS) Cowan Atomic Structure code. Population distributions for the ion stages are obtained in LINES by using the Local Thermodynamic Equilibrium (LTE) model. LINES is also useful for displaying the pertinent atomic data generated by CATS. This report describes the use of LINES. Both CATS and LINES are part of the Theoretical Atomic PhysicS (TAPS) code development effort at Los Alamos. 11 refs., 9 figs., 1 tab.

Abdallah, J. Jr.; Clark, R.E.H.

1988-12-01T23:59:59.000Z

194

DISTRIBUTED AMPLIFIER INCORPORATING FEEDBACK  

DOE Patents (OSTI)

An improved distributed amplifier system employing feedback for stabilization is presented. In accordance with the disclosed invention, a signal to be amplified is applled to one end of a suitable terminated grid transmission line. At intervals along the transmission line, the signal is fed to stable, resistance-capacitance coupled amplifiers incorporating feedback loops therein. The output current from each amplifier is passed through an additional tube to minimize the electrostatic capacitance between the tube elements of the last stage of the amplifier, and fed to appropriate points on an output transmission line, similar to the grid line, but terminated at the opposite (input) end. The output taken from the unterminated end of the plate transmission line is proportional to the input voltage impressed upon the grid line.

Bell, P.R. Jr.

1958-10-21T23:59:59.000Z

195

Separation axioms and the fuzzy real lines  

Science Conference Proceedings (OSTI)

We show that for each lattice L which is completely distributive and equipped with an order-reversing involution, the canonical topology of the fuzzy real line @?(L) is uniformizable in the sense of Hutton; furthermore, this uniformity induces a pseudometric ... Keywords: ?-Hausdorff, Fuzzy subspace, Fuzzy topology, Product L-fuzzy real line, Pseudometrizable, Quasi-uniformity, Suitable, Uniformity

S. E. Rodabaugh

1983-01-01T23:59:59.000Z

196

A Refined Method of Parameterizing Absorption Coefficients among Multiple Gases Simultaneously from Line-by-Line Data  

Science Conference Proceedings (OSTI)

An extension of the correlated-k distribution method that uses spectral-mapping techniques was derived to parameterize line-by-line absorption coefficients for multiple gases simultaneously for use in three-dimensional atmospheric models. In a ...

Mark Z. Jacobson

2005-02-01T23:59:59.000Z

197

Sierra Pacific Power Company Alturas Transmission Line Project, Final Environmental Impact Report/Environmental Impact Statement. Volume 2: Comments and responses  

Science Conference Proceedings (OSTI)

Sierra Pacific Power Company has proposed the construction and operation of a 345,000 volt overhead electric power transmission line from Alturas, California to Reno, Nevada. This Environmental Impact Report/Environmental Impact Statement will assess the potential environmental impacts of the proposed project and alternatives. This report contains public comments which were received on the Draft EIR/S. Significant issues may be identified through public and agency comments.

NONE

1995-11-01T23:59:59.000Z

198

Power Line-Induced AC Potential on Natural Gas Pipelines for Complex Rights-of-Way Configurations, Volume 1: Engineering Analysis  

Science Conference Proceedings (OSTI)

This report addresses complex common corridor coupling problems for overhead electric power transmission lines and buried natural gas pipelines. Volume 1 describes the development of analytic methods for solving such problems and presents field data used in verification efforts. Volume 2 is a handbook for graphic analysis designed for use by field personnel or others without access to a computer. Volume 3 is a user's guide for the PIPELINE computer code.

1983-05-01T23:59:59.000Z

199

Final joint environmental assessment for the construction and routine operation of a 12-kilovolt (KV) overhead powerline right-of-way, and formal authorization for a 10-inch and 8-inch fresh water pipeline right-of-way, Naval Petroleum Reserve No. 1, Kern County, California  

SciTech Connect

The purpose and need of the proposed action, which is the installation of an overhead powerline extension from an Naval Petroleum Reserve No. 1 (NPR-1) power source to the WKWD Station A, is to significantly reduce NPR-1`s overall utility costs. While the proposed action is independently justified on its own merits and is not tied to the proposed NPR-1 Cogeneration Facility, the proposed action would enable DOE to tie the NPR-1 fresh water pumps at Station A into the existing NPR-1 electrical distribution system. With the completion of the cogeneration facility in late 1994 or early 1995, the proposed action would save additional utility costs. This report deals with the environmental impacts of the construction of the powerline and the water pipeline. In addition, information is given about property rights and attaining permission to cross the property of proposed affected owners.

1994-10-01T23:59:59.000Z

200

UWIG Distributed Wind Impacts Analysis Tool Progress Report: Utility Wind Interest Group Distributed Wind Impacts Project  

Science Conference Proceedings (OSTI)

Distributed wind generation systems consist of small clusters of wind turbines located near small load centers and connected directly to the distribution system. Depending on the electrical characteristics of the distribution line, the type of wind turbine, and the relative locations of the interconnection to the distribution system, the substation, and customer connections, distributed wind generation can significantly affect the stability, power quality, and operations of the distribution line. As a re...

2004-03-29T23:59:59.000Z

Note: This page contains sample records for the topic "overhead distribution lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Managing Transmission Line Wood Structures  

Science Conference Proceedings (OSTI)

Transmission and distribution infrastructures throughout the world are aging. As such, inspection, assessment, and maintenance of existing facilities have become increasingly important topics. This valuable reference provides an in-depth look at all facets of an inspection, assessment, and maintenance program for transmission line wood structures to help utilities develop and refine individual maintenance programs. The report is part of a broader multi-year effort by EPRI to develop a comprehensive handb...

2006-09-28T23:59:59.000Z

202

Distributive Subband Allocation, Power and Rate Control for Relay-Assisted OFDMA Cellular System with Imperfect System State Knowledge  

E-Print Network (OSTI)

In this paper, we consider distributive subband, power and rate allocation for a two-hop transmission in an orthogonal frequency-division multiple-access (OFDMA) cellular system with fixed relays which operate in decode-and-forward strategy. We take into account of system fairness by considering weighted sum goodput as our optimization objective. Based on the cluster-based architecture, we obtain a fast-converging distributive solution with only local imperfect CSIT by using decomposition of the optimization problem. To further reduce the signaling overhead and computational complexity, we propose a reduced feedback distributive solution, which can achieve asymptotically optimal performance for large number of users with arbitrarily small feedback overhead per user. We also derive asymptotic average system throughput for the relay-assisted OFDMA system so as to obtain useful design insights.

Cui, Ying; Wang, Rui

2009-01-01T23:59:59.000Z

203

A Methodology for Estimating the Parameters of a Gamma Raindrop Size Distribution Model from Polarimetric Radar Data: Application to a Squall-Line Event from the TRMM/Brazil Campaign  

Science Conference Proceedings (OSTI)

A methodology is proposed for estimating the parameters of a gamma raindrop size distribution model from radar measurements of Zh, Zdr, and Kdp at S band. Previously developed algorithms by Gorgucci et al. are extended to cover low rain-rate ...

V. N. Bringi; Gwo-Jong Huang; V. Chandrasekar; E. Gorgucci

2002-05-01T23:59:59.000Z

204

Nuclear reactor overflow line  

DOE Patents (OSTI)

The overflow line for the reactor vessel of a liquid-metal-cooled nuclear reactor includes means for establishing and maintaining a continuous bleed flow of coolant amounting to 5 to 10% of the total coolant flow through the overflow line to prevent thermal shock to the overflow line when the reactor is restarted following a trip. Preferably a tube is disposed concentrically just inside the overflow line extending from a point just inside the reactor vessel to an overflow tank and a suction line is provided opening into the body of liquid metal in the reactor vessel and into the annulus between the overflow line and the inner tube.

Severson, Wayne J. (Pittsburgh, PA)

1976-01-01T23:59:59.000Z

205

Distribution Arc Flash  

Science Conference Proceedings (OSTI)

Arc flash from faults on distribution circuits is a safety issue that can impact work practices, protection requirements for line and substation workers, and relay and other overcurrent protection settings and practices. This report describes analysis methods and test results for EPRI-sponsored research on arc flash conducted in 2008.

2009-03-18T23:59:59.000Z

206

BlackLining Demo BlackLining Demo  

E-Print Network (OSTI)

BlackLining Demo BlackLining Demo BlackLining Demo YOUR PAYCHECKPAYROLL TAXES AND EMPLOYMENT LAW BY SPONSORED BY #12;BlackLining Demo e BlackLining Demo e BlackLining Demo e AMERICAN PAYROLL ASSOCIATION i Design by PRIWORKS.com. Images from Thinkstock.com. #12;BlackLining Demo BlackLining Demo Black

Harms, Kyle E.

207

North Australian Cloud Lines  

Science Conference Proceedings (OSTI)

A satellite classification and climatology of propagating mesoscale cloud fines in northern Australia is presented. These cloud fines range from long, narrow lines of shallow convection to extensive deep convective squall lines with mesoscale ...

W. Drosdowsky; G. J. Holland

1987-11-01T23:59:59.000Z

208

NREL: Learning - Distributed Energy Basics  

NLE Websites -- All DOE Office Websites (Extended Search)

Distributed Energy Basics Distributed Energy Basics Photo of transmission towers and lines extending for miles towards a pink sunset in the distance. Distributed energy technologies can relieve transmission bottlenecks by reducing the amount of electricity that must be sent long distances down high-voltage power lines. Distributed energy refers to a variety of small, modular power-generating technologies that can be combined with load management and energy storage systems to improve the quality and/or reliability of the electricity supply. They are "distributed" because they are placed at or near the point of energy consumption, unlike traditional "centralized" systems, where electricity is generated at a remotely located, large-scale power plant and then transmitted down power lines to the consumer.

209

Unbalanced Load Flow for Weakly Meshed Distribution Systems with Distributed Generation  

Science Conference Proceedings (OSTI)

Distributed Generation (DG) can bring support to distribution system, meanwhile, it bring unbalancedness in power source, load and line. Traditional load flow algorithms are not applicable to the weakly meshed distribution system with DGs. First, this ... Keywords: weakly meshed distribution system, distributed generation, unbalanced load flow, sensitivity compensation

Shao-Qiang Hu; Sen-Mao Li

2010-06-01T23:59:59.000Z

210

Characterization of Planar Transmission Lines  

Science Conference Proceedings (OSTI)

... References on: On-Wafer Measurement and Calibration, Planar Transmission Line Characterization and Multiconductor Transmission Lines. ...

2011-12-15T23:59:59.000Z

211

Summit-Watertown transmission line project, South Dakota. Final Environmental Assessment  

SciTech Connect

The Western Area Power Administration (Western) needs to rebuild the existing Summit-Watertown 115-kV transmission line, located in northeastern South Dakota, and western Minnesota. Nearly 60 percent of the existing facility was replaced in 1965 after severe ice-loading broke structures and wires. Because of the extensive loss of the line, surplus poles had to be used to replace the damaged H-frame structures. These were of varying sizes, causing improper structure loading. Additionally, the conductors and overhead shield wires have been spliced in numerous places. This provides additional space on these wires for icing and wind resistance, which in turn create problems for reliability. Finally, a progressive fungal condition has weakened the poles and, along with the improper loading, has created an unsafe condition for maintenance personnel and the general public.

1993-12-01T23:59:59.000Z

212

Germ-line Allele  

NLE Websites -- All DOE Office Websites (Extended Search)

Germ-line Allele Germ-line Allele Name: Rachel Location: N/A Country: N/A Date: N/A Question: Can you please explain a "germ-line allele" to me! It is very important for a research paper I am writing about breast cancer. Replies: Mutations in genes are only able to be passed to the offspring if they are found in gametes (egg, sperm) mutations that occur in body cells other than gametes are usually not important because the cells can be replaced and they die eventually. The only way a characteristic can be passed to the offspring is through the eggs and sperm, so if there is a mutation in one these cells, the offspring can inherit the mutation. So a germ-line cell is a gamete. And a germ line allele is a version of the trait that is passed to the offspring through the germ line cell (or gamete).

213

Series Transmission Line Transformer  

DOE Patents (OSTI)

A series transmission line transformer is set forth which includes two or more of impedance matched sets of at least two transmissions lines such as shielded cables, connected in parallel at one end ans series at the other in a cascading fashion. The cables are wound about a magnetic core. The series transmission line transformer (STLT) which can provide for higher impedance ratios and bandwidths, which is scalable, and which is of simpler design and construction.

Buckles, Robert A. (Livermore, CA); Booth, Rex (Livermore, CA); Yen, Boris T. (El Cerrito, CA)

2004-06-29T23:59:59.000Z

214

Properly Understanding the Impacts of Distributed Resources on Distribution Systems  

Science Conference Proceedings (OSTI)

The subject paper discusses important impacts of distributed resources on distribution networks and feeders. These include capacity, line losses, voltage regulation, and central system support (such as volt/var via central generators and substation) as the number, placement and penetration levels of distributed resources are varied. Typically, the impacts of distributed resources on the distribution system are studied by using steady-state rather than dynamic analysis tools. However, the response time and transient impacts of both system equipment (such as substation/feeder capacitors) and distributed resources needs to be taken into account and only dynamic analysis will provide the full impact results. ORNL is wrapping up a study of distributed resources interconnected to a large distribution system considering the above variables. A report of the study and its results will be condensed into a paper for this panel session. The impact of distributed resources will vary as the penetration level reaches the capacity of the distribution feeder/system. The question is how high of a penetration of distributed resource can be accommodated on the distribution feeder/system without any major changes to system operation, design and protection. The impacts most surely will vary depending upon load composition, distribution and level. Also, it is expected that various placement of distributed resources will impact the distribution system differently.

Rizy, D Tom [ORNL; Li, Fangxing [ORNL; Li, Huijuan [University of Tennessee, Knoxville (UTK); Adhikari, Sarina [ORNL; Kueck, John D [ORNL

2010-01-01T23:59:59.000Z

215

A fault location approach for fuzzy fault section estimation on radial distribution feeders  

E-Print Network (OSTI)

Locating the faulted section of a distribution system is a difficult task because of lack of accurate system models and the presence of uncertainty in the data used for estimating the fault section. Many of the methods used to account for the uncertainty use fuzzy logic techniques to estimate bounds of possibility of the input data and calculated quantities, or probabilistic modeling of the input data to estimate the likelihood of the location of the fault on a particular section of the feeder. Heuristic knowledge of control center dispatchers has also been used for uncertainty management. This thesis presents the design and implementation of a phase selector algorithm and a fault distance algorithm for use in an automated modular scheme for fault section estimation on radial distribution systems. These two algorithms will be executed in combination with two other fault location algorithms. The scheme is executed using the data record of an abnormal event in a three-stage scheme. The phase selector algorithm was used to obtain event-phase possibility values representing the possibility of involvement of each of the phases and the neutral in an event. A section-event possibility value that indicated the possibility that a section of the feeder was involved in the fault was evaluated using the event-phase possibility values and line section phase topology information. The fault distance algorithm was used to eliminate sections of the feeder that were not likely to be possible faulted section candidates by assuming a bolted fault and estimating its location. Each line section was assigned a fault possibility value of zero or one according to its location relative to the location of the fault. The phase selector algorithm was tested using real data measured at feeder substations and the fault distance algorithm was tested using data obtained by staging faults on a model of an overhead feeder using EMTP/ATP simulation. The results obtained from the tests were promising. A simple illustration of the combination of the results of the two algorithms is given. The result of this combination shows the potential of the simultaneous use of the two algorithms.

Andoh, Kwame Sarpong

2000-01-01T23:59:59.000Z

216

Generic on-line/off-line threshold signatures  

E-Print Network (OSTI)

Tauman [16] and the distributed key generation protocol ofdiscrete logarithm distributed key generation algorithm ofscheme with distributed key generation and distributed

Crutchfield, C; Molnar, D; Turner, D; Wagner, D

2006-01-01T23:59:59.000Z

217

Distribution Arc Flash  

Science Conference Proceedings (OSTI)

Arc flash from faults on distribution circuits is a safety issue that can impact work practices, protection requirements for line and substation workers, and relay and other overcurrent protection settings and practices. Highlights of the research results are the following: Arcs did not sustain in any of the tests at 120/208 V in network protectors or meters. Because of low incident energies, only single-layer flame-retardant clothing is needed. Testing on medium-voltage equipment showed wide variability...

2011-03-08T23:59:59.000Z

218

Equitable distribution  

Science Conference Proceedings (OSTI)

The problem of distributing available resources occurs in a great variety of networks, each with peculiarities of its own. Coal from mines has to be distributed to central dumps and to small yards. Ice cream must be distributed only to refrigerated stores ...

John A. Gosden

1963-05-01T23:59:59.000Z

219

Information Sharing Across Transmission and Distribution Operations  

Science Conference Proceedings (OSTI)

In the real-time operation of the grid, there is a natural dividing line between the bulk power, or transmission, system and the distribution system. The increasing deployment of distributed resourcesincluding distributed energy resources (distributed generation) and curtailable load (demand response)will require update of transmission and distribution system processes and applications that ensure reliable and efficient grid operation. Closer coordination of activities will be necessary as both systems a...

2010-12-22T23:59:59.000Z

220

Wireless Sensor Network for Electric Transmission Line Monitoring  

SciTech Connect

Generally, federal agencies tasked to oversee power grid reliability are dependent on data from grid infrastructure owners and operators in order to obtain a basic level of situational awareness. Since there are many owners and operators involved in the day-to-day functioning of the power grid, the task of accessing, aggregating and analyzing grid information from these sources is not a trivial one. Seemingly basic tasks such as synchronizing data timestamps between many different data providers and sources can be difficult as evidenced during the post-event analysis of the August 2003 blackout. In this project we investigate the efficacy and cost effectiveness of deploying a network of wireless power line monitoring devices as a method of independently monitoring key parts of the power grid as a complement to the data which is currently available to federal agencies from grid system operators. Such a network is modeled on proprietary power line monitoring technologies and networks invented, developed and deployed by Genscape, a Louisville, Kentucky based real-time energy information provider. Genscape measures transmission line power flow using measurements of electromagnetic fields under overhead high voltage transmission power lines in the United States and Europe. Opportunities for optimization of the commercial power line monitoring technology were investigated in this project to enable lower power consumption, lower cost and improvements to measurement methodologies. These optimizations were performed in order to better enable the use of wireless transmission line monitors in large network deployments (perhaps covering several thousand power lines) for federal situational awareness needs. Power consumption and cost reduction were addressed by developing a power line monitor using a low power, low cost wireless telemetry platform known as the ''Mote''. Motes were first developed as smart sensor nodes in wireless mesh networking applications. On such a platform, it has been demonstrated in this project that wireless monitoring units can effectively deliver real-time transmission line power flow information for less than $500 per monitor. The data delivered by such a monitor has during the course of the project been integrated with a national grid situational awareness visualization platform developed by Oak Ridge National Laboratory. Novel vibration energy scavenging methods based on piezoelectric cantilevers were also developed as a proposed method to power such monitors, with a goal of further cost reduction and large-scale deployment. Scavenging methods developed during the project resulted in 50% greater power output than conventional cantilever-based vibrational energy scavenging devices typically used to power smart sensor nodes. Lastly, enhanced and new methods for electromagnetic field sensing using multi-axis magnetometers and infrared reflectometry were investigated for potential monitoring applications in situations with a high density of power lines or high levels of background 60 Hz noise in order to isolate power lines of interest from other power lines in close proximity. The goal of this project was to investigate and demonstrate the feasibility of using small form factor, highly optimized, low cost, low power, non-contact, wireless electric transmission line monitors for delivery of real-time, independent power line monitoring for the US power grid. The project was divided into three main types of activity as follows; (1) Research into expanding the range of applications for non-contact power line monitoring to enable large scale low cost sensor network deployments (Tasks 1, 2); (2) Optimization of individual sensor hardware components to reduce size, cost and power consumption and testing in a pilot field study (Tasks 3,5); and (3) Demonstration of the feasibility of using the data from the network of power line monitors via a range of custom developed alerting and data visualization applications to deliver real-time information to federal agencies and others tasked with grid reliability (Tasks 6,8)

Alphenaar, Bruce

2009-06-30T23:59:59.000Z

Note: This page contains sample records for the topic "overhead distribution lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

The cost of service quality improvements: tracking the flow of funds in social franchise networks in Myanmar  

E-Print Network (OSTI)

administrative overhead to the various lines of service. Thelines and across administrative work vs. quality supervision. Allocating overhead

2013-01-01T23:59:59.000Z

222

Abstract--Distribution factors play a key role in many system security analysis and market applications. The injection shift  

E-Print Network (OSTI)

1 Abstract-- Distribution factors play a key role in many system security analysis and market of the other distribution factors. The line outage distribution factors (LODFs) may be computed using the ISFs distribution factors, line outage distribution factors, multiple-line outages, system security. I. INTRODUCTION

223

Distribution Screening for Distributed Generation  

Science Conference Proceedings (OSTI)

As the deployment of renewable distributed generation increases, the need for traditional energy providers to interact with these resources increases. Detailed modeling and simulation of the distribution and distributed resources is a critical element to better analyze, understand and predict these interactions. EPRI has developed a tool for such analysis called OpenDSS. In addition, as part of the renewable integration program an applet was created for screening distributed generation (DG). This report ...

2009-12-23T23:59:59.000Z

224

Power line detection system  

DOE Patents (OSTI)

A short-range, radio frequency (RF) transmitting-receiving system that provides both visual and audio warnings to the pilot of a helicopter or light aircraft of an up-coming power transmission line complex. Small, milliwatt-level narrowband transmitters, powered by the transmission line itself, are installed on top of selected transmission line support towers or within existing warning balls, and provide a continuous RF signal to approaching aircraft. The on-board receiver can be either a separate unit or a portion of the existing avionics, and can also share an existing antenna with another airborne system. Upon receipt of a warning signal, the receiver will trigger a visual and an audio alarm to alert the pilot to the potential power line hazard. 4 figs.

Latorre, V.R.; Watwood, D.B.

1994-09-27T23:59:59.000Z

225

Electric Transmission Lines (Iowa)  

Energy.gov (U.S. Department of Energy (DOE))

Electric transmission lines capable of operating at 69 kV or greater cannot be constructed along, across, or over any public highways or grounds outside of cities without a franchise from the...

226

Power line detection system  

DOE Patents (OSTI)

A short-range, radio frequency (RF) transmitting-receiving system that provides both visual and audio warnings to the pilot of a helicopter or light aircraft of an up-coming power transmission line complex. Small, milliwatt-level narrowband transmitters, powered by the transmission line itself, are installed on top of selected transmission line support towers or within existing warning balls, and provide a continuous RF signal to approaching aircraft. The on-board receiver can be either a separate unit or a portion of the existing avionics, and can also share an existing antenna with another airborne system. Upon receipt of a warning signal, the receiver will trigger a visual and an audio alarm to alert the pilot to the potential power line hazard.

Latorre, Victor R. (Tracy, CA); Watwood, Donald B. (Tracy, CA)

1994-01-01T23:59:59.000Z

227

A distributed hard real-time Java system for high mobility components  

E-Print Network (OSTI)

In this work we propose a methodology for providing real-time capabilities to component-based, on-the-fly recon?gurable, distributed systems. In such systems, software components migrate across computational resources at run-time to allow applications to adapt to changes in user requirements or to external events. We describe how we achieve run-time recon?guration in distributed Java applications by appropriately migrating servers. Guaranteed-rate schedulers at the servers provide the necessary temporal protection and so simplify remote method invocation management. We describe how we manage overhead and resource utilization by controlling the parameters of the server schedulers. According to our measurements, this methodology provides real-time capability to component-based recon?gurable distributed systems in an effcient and effective way. In addition, we propose a new resource discovery protocol, REALTOR, which is based on a combination of pull-based and push-based resource information dissemination. REALTOR has been designed for real-time component-based distributed applications in very dynamic or adverse environments. REALTOR supports survivability and information assurance by allowing the migration of components to safe locations under emergencies suchas externalattack, malfunction, or lackofresources. Simulation studies show that under normal and heavy load conditions REALTOR remains very effective in finding available resources, and does so with a reasonably low communication overhead.REALTOR 1)effectively locates resources under highly dynamic conditions, 2) has an overhead that is system-size independent, and 3) works well in highlyadverse environments.We evaluate the effectiveness of a REALTOR implementation as part of Agile Objects, an infrastructure for real-time capable, highly mobile Java components.

Rho, Sangig

2004-12-01T23:59:59.000Z

228

Damping of bending waves in truss beams by electrical transmission lines with PZT actuators  

E-Print Network (OSTI)

Damping of bending waves in truss beams by electrical transmission lines with PZT actuators F. dell of the truss beam with an electrical transmission line by a line distribution of PZT actuators. It has been modular beams by coupling them with fourth-order electric transmission lines and adding PZT actu- ators

Paris-Sud XI, Université de

229

Distribution Workshop  

Energy.gov (U.S. Department of Energy (DOE))

On September 24-26, 2012, the GTT presented a workshop on grid integration on the distribution system at the Sheraton Crystal City near Washington, DC.

230

Transmission line capital costs  

Science Conference Proceedings (OSTI)

The displacement or deferral of conventional AC transmission line installation is a key benefit associated with several technologies being developed with the support of the U.S. Department of Energy`s Office of Energy Management (OEM). Previous benefits assessments conducted within OEM have been based on significantly different assumptions for the average cost per mile of AC transmission line. In response to this uncertainty, an investigation of transmission line capital cost data was initiated. The objective of this study was to develop a database for preparing preliminary estimates of transmission line costs. An extensive search of potential data sources identified databases maintained by the Bonneville Power Administration (BPA) and the Western Area Power Administration (WAPA) as superior sources of transmission line cost data. The BPA and WAPA data were adjusted to a common basis and combined together. The composite database covers voltage levels from 13.8 to 765 W, with cost estimates for a given voltage level varying depending on conductor size, tower material type, tower frame type, and number of circuits. Reported transmission line costs vary significantly, even for a given voltage level. This can usually be explained by variation in the design factors noted above and variation in environmental and land (right-of-way) costs, which are extremely site-specific. Cost estimates prepared from the composite database were compared to cost data collected by the Federal Energy Regulatory Commission (FERC) for investor-owned utilities from across the United States. The comparison was hampered because the only design specifications included with the FERC data were voltage level and line length. Working within this limitation, the FERC data were not found to differ significantly from the composite database. Therefore, the composite database was judged to be a reasonable proxy for estimating national average costs.

Hughes, K.R.; Brown, D.R.

1995-05-01T23:59:59.000Z

231

Power Line Calculator for DOS  

Science Conference Proceedings (OSTI)

The Power Line Calculator (PLC) for DOS, version 1.0, is a program that describes the electrical characteristics of a transmission or distribution system given user-defined input. This input may consist of a combination of operating currents and phases, symmetric components, power factor, and real or reactive power. The program also allows the user to designate whether currents are present on the system neutral or in the ground. The PLC assumes that any value entered by the user remains fixed (e.g., phase current, power factor), and for underdetermined systems, basic default assumptions are incorporated: the power factor is held at or near 1.0, the net phase current is kept at or near zero, and the phase conductor currents are kept balanced. The program operates under PC/MS-DOS version 3.3 or later, and the output is available in both tabular and graphic formats.

Silva, J.M. (Enertech Consultants, Campbell, CA (United States))

1992-11-01T23:59:59.000Z

232

Inertial confinement fusion method producing line source radiation fluence  

DOE Patents (OSTI)

An inertial confinement fusion method in which target pellets are imploded in sequence by laser light beams or other energy beams at an implosion site which is variable between pellet implosions along a line. The effect of the variability in position of the implosion site along a line is to distribute the radiation fluence in surrounding reactor components as a line source of radiation would do, thereby permitting the utilization of cylindrical geometry in the design of the reactor and internal components.

Rose, Ronald P. (Peters Township, Washington County, PA)

1984-01-01T23:59:59.000Z

233

Two Line Subject Title One Line Title  

NLE Websites -- All DOE Office Websites (Extended Search)

- - Regional University Alliance (NETL-RUA) Grid Technologies Collaborative (GTC) Gregory Reed, PhD - University of Pittsburgh - GTC Lead (Director, Electric Power Initiative; Associate Director, Center for Energy; and Assoc. Professor, ECE Dept. - Swanson School of Engineering, PITT) * The Grid Technologies Collaborative (GTC) is an integrated industry-university-government research and development group that advances the state-of-the-art in transmission and distribution system level power electronics technologies. * Participants in the collaborative include industry partners and researchers from the U.S. Dept. of Energy's National Energy Technology Laboratory Regional University Alliance (NETL-

234

Marine surveys aid gas line  

Science Conference Proceedings (OSTI)

Detailed marine surveys helped B.C. Hydro, a Canadian gas distribution utility, select the submarine route portion of the proposed Vancouver Island gas pipeline system. In 1984, after a series of government hearings, B.C. Hydro's route selection was adopted by the British Columbia Provincial Government. Vancouver Island is the last major population center in Western Canada not supplied with natural gas. In fact, studies of a gas pipeline to the island have been carried out periodically over the past 30 years. But until recently, all schemes have appeared unattractive because of a combination of technical, economic, and political factors. The proposed Vancouver Island project which is awaiting funding, consists of a dual 52.7-km marine transmission pipeline link from the mainland to the island. Diameter of this portion of line will be either 12 of 16-in. Also, part of the proposed system will be an 18.5-km line on the mainland, a 280-km transmission pipeline on the island, compression facilities, and distribution systems in the major population centers. Diameters for the land portions will vary between 6 and 24 in. For several months in late 1983 and early 1984, the project was the subject of public hearings held by the British Columbia Utilities Commission. This process was complicated when two companies applied to construct and operate the marine pipeline link to the island using completely different routes and techniques. In July 1984, the commission recommended to the Provincial Government that B.C. Hydro's proposal for the marine pipeline be accepted. It further recommended that an Energy Project Certificate for construction of the pipeline link to the island be awarded to B.C. Hydro. The recommendation was accepted by the Provincial Government and the project now awaits a funding agreement between the Federal and Provincial Governments.

Park, C.A.; Baines, F.A. Koenig, H.L.

1986-05-05T23:59:59.000Z

235

2005 EIA-821 SURVEY: LINE-BY-LINE REFERENCE GUIDE  

U.S. Energy Information Administration (EIA)

2010 EIA-821 SURVEY: LINE-BY-LINE REFERENCE GUIDE. Kerosene. ... Geothermal energy drilling company Logging company Privately owned port or loading dock

236

SPEAR3 Beam Line Availability  

NLE Websites -- All DOE Office Websites (Extended Search)

Beam Line Support | Floor Support | Administrative Support SPEAR3 Beam Line Availability Beam Line BL Type Technique(s) Status 1-4 X-ray Small and Wide Angle X-ray Scattering Open...

237

Utility Line Inspections and Audits  

Science Conference Proceedings (OSTI)

Utility Line Inspections and Audits provides utility engineers with a concise reference for the pros, cons, and how to related to performing various line inspections and audits.

2007-03-21T23:59:59.000Z

238

Definition: Automated Feeder And Line Switching | Open Energy Information  

Open Energy Info (EERE)

Definition Definition Edit with form History Facebook icon Twitter icon » Definition: Automated Feeder And Line Switching Jump to: navigation, search Dictionary.png Automated Feeder And Line Switching Automated feeder and line switching is realized through automatic isolation and reconfiguration of faulted segments of distribution feeders or transmission lines via sensors, controls, switches, and communications systems. These devices can operate autonomously in response to local events or in response to signals from a central control system.[1] Related Terms transmission lines, transmission line References ↑ SmartGrid.gov 'Description of Functions' An i LikeLike UnlikeLike You like this.Sign Up to see what your friends like. nline Glossary Definition Retrieved from "http://en.openei.org/w/index.php?title=Definition:Automated_Feeder_And_Line_Switching&oldid=480562"

239

Omega Transmission Lines  

E-Print Network (OSTI)

In this paper, we show how bi-anisotropic media with omega-type response can be realized using periodically loaded transmission lines. General conditions for the needed unit cell circuit block are derived. Also, an implementation is shown and analyzed.

Vehmas, Joni

2013-01-01T23:59:59.000Z

240

On line course organization  

Science Conference Proceedings (OSTI)

In order to help users access on-line materials with more specific questions, we build a learning portal named Fusion. First we develop Fusion-Crawler, a link classification focused crawler, to download potential course pages. We then use a binary classifier ... Keywords: focused crawling, learning object management, metadata extraction, ontology

Ming Zhang; Weichun Wang; Yi Zhou; Yu Yang; Yuhong Xiong; Xiaoming Li

2007-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "overhead distribution lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Line Emission from Optically Thick RelativisticAccretion Tori  

SciTech Connect

We calculate line emission from relativistic accretion tori around Kerr black holes and investigate how the line profiles depend on the viewing inclination, spin of the central black hole, parameters describing the shape of the tori, and spatial distribution of line emissivity on the torus surface. We also compare the lines with those from thin accretion disks. Our calculations show that lines from tori and lines from thin disks share several common features. In particular, at low and moderate viewing inclination angles they both have asymmetric double-peaked profiles with a tall, sharp blue peak and a shorter red peak which has an extensive red wing. At high viewing inclination angles they both have very broad, asymmetric lines which can be roughly considered as single-peaked. Torus and disk lines may show very different red and blue line wings, but the differences are due to the models for relativistic tori and disks having differing inner boundary radii. Self-eclipse and lensing play some role in shaping the torus lines, but they are effective only at high inclination angles. If inner and outer radii of an accretion torus are the same as those of an accretion disk, their line profiles show substantial differences only when inclination angles are close to 90{sup o}, and those differences are manifested mostly at the central regions of the lines instead of the wings.

Fuerst, Steven V.; /KIPAC, Menlo Park /Mullard Space Sci. Lab.; Wu, Kinwah; /Mullard Space Sci. Lab.

2007-09-14T23:59:59.000Z

242

Unclassified Distribution  

NLE Websites -- All DOE Office Websites (Extended Search)

63 1 Unclassified Distribution UNIVERSITY :OF CALIFORNU Radiation Lab oratory Contract No, W-7405-eng-48 THE DETECTION OF U T I F I C I B L L Y PRODUCED WOTOMESONS WITH COUNTERS *...

243

Special Distribution  

Office of Legacy Management (LM)

Special Distribution Special Distribution Issued: December 1977 ',, Radiological Survey and Decontamination of the Former Main Technical Area (TA-1) at Los Alamos, New Mexico Compiled by A. John Ahlquist Alan K. Stoker Linda K. Trocki c laboratory of, the University of California LOS ALAMOS, NEW MEXICO 87545 An Alfirmdve Action/Equal Opportunity Employer ..-_- .-- .--.-. c T -,--... _ _._-r..l __,.. - .-,_.. ..- _._ -- .--. " . . _ . - . c- - . . . _ -. . _ . - . - . _ - - n - _ _~ ~_. __ _ ~~_ --..&e+ L.';; CONTENTS ABSTRACT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .._____ 1 EXECUTIVE SUMMARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .._... _._ 2 I. BACKGROUND .............................................. 15

244

Distributing Power Grid State Estimation on HPC Clusters A System Architecture Prototype  

Science Conference Proceedings (OSTI)

The future power grid is expected to further expand with highly distributed energy sources and smart loads. The increased size and complexity lead to increased burden on existing computational resources in energy control centers. Thus the need to perform real-time assessment on such systems entails efficient means to distribute centralized functions such as state estimation in the power system. In this paper, we present our early prototype of a system architecture that connects distributed state estimators individually running parallel programs to solve non-linear estimation procedure. The prototype consists of a middleware and data processing toolkits that allows data exchange in the distributed state estimation. We build a test case based on the IEEE 118 bus system and partition the state estimation of the whole system model to available HPC clusters. The measurement from the testbed demonstrates the low overhead of our solution.

Liu, Yan; Jiang, Wei; Jin, Shuangshuang; Rice, Mark J.; Chen, Yousu

2012-08-20T23:59:59.000Z

245

Electrical and Biological Effects of Transmission Lines: A Review.  

Science Conference Proceedings (OSTI)

This review describes the electrical properties of a-c and d-c transmission lines and the resulting effects on plants, animals, and people. Methods used by BPA to mitigate undesirable effects are also discussed. Although much of the information in this review pertains to high-voltage transmission lines, information on distribution lines and electrical appliances is included. The electrical properties discussed are electric and magnetic fields and corona: first for alternating-current (a-c) lines, then for direct current (d-c).

Lee, Jack M.

1989-06-01T23:59:59.000Z

246

Stereoscopic 3D line drawing  

Science Conference Proceedings (OSTI)

This paper discusses stereoscopic 3D imaging based on line drawing of 3D shapes. We describe the major issues and challenges in generating stereoscopic 3D effects using lines only, with a couple of relatively simple approaches called each-eye-based and ... Keywords: binocular rivalry, line drawing, line stylization, non-photorealism, stereo coherence, stereoscopy

Yongjin Kim; Yunjin Lee; Henry Kang; Seungyong Lee

2013-07-01T23:59:59.000Z

247

Printed circuit dispersive transmission line  

DOE Patents (OSTI)

A printed circuit dispersive transmission line structure is disclosed comprising an insulator, a ground plane formed on one surface of the insulator, a first transmission line formed on a second surface of the insulator, and a second transmission line also formed on the second surface of the insulator and of longer length than the first transmission line and periodically intersecting the first transmission line. In a preferred embodiment, the transmission line structure exhibits highly dispersive characteristics by designing the length of one of the transmission line between two adjacent periodic intersections to be longer than the other. 5 figures.

Ikezi, H.; Lin-Liu, Y.R.; DeGrassie, J.S.

1991-08-27T23:59:59.000Z

248

Printed circuit dispersive transmission line  

DOE Patents (OSTI)

A printed circuit dispersive transmission line structure is disclosed comprising an insulator, a ground plane formed on one surface of the insulator, a first transmission line formed on a second surface of the insulator, and a second transmission line also formed on the second surface of the insulator and of longer length than the first transmission line and periodically intersecting the first transmission line. In a preferred embodiment, the transmission line structure exhibits highly dispersive characteristics by designing the length of one of the transmission line between two adjacent periodic intersections to be longer than the other.

Ikezi, Hiroyuki (Rancho Santa Fe, CA); Lin-Liu, Yuh-Ren (San Diego, CA); DeGrassie, John S. (Encinitas, CA)

1991-01-01T23:59:59.000Z

249

Printed circuit dispersive transmission line  

DOE Patents (OSTI)

A printed circuit dispersive transmission line structure is disclosed comprising an insulator, a ground plane formed on one surface of the insulator, a first transmission line formed on a second surface of the insulator, and a second transmission line also formed on the second surface of the insulator and of longer length than the first transmission line and periodically intersecting the first transmission line. In a preferred embodiment, the transmission line structure exhibits highly dispersive characteristics by designing the length of one of the transmission lines between two adjacent periodic intersections to be longer than the other. 5 figs.

Ikezi, Hiroyuki; Lin-Liu, Yuh-Ren; deGrassie, J.S.

1990-03-02T23:59:59.000Z

250

Drill string transmission line  

DOE Patents (OSTI)

A transmission line assembly for transmitting information along a downhole tool comprising a pin end, a box end, and a central bore traveling between the pin end and the box end, is disclosed in one embodiment of the invention as including a protective conduit. A transmission line is routed through the protective conduit. The protective conduit is routed through the central bore and the ends of the protective conduit are routed through channels formed in the pin end and box end of the downhole tool. The protective conduit is elastically forced into a spiral or other non-linear path along the interior surface of the central bore by compressing the protective conduit to a length within the downhole tool shorter than the protective conduit.

Hall, David R. (Provo, UT); Hall, Jr., H. Tracy (Provo, UT); Pixton, David S. (Lehi, UT); Bradford, Kline (Orem, UT); Fox, Joe (Spanish Fork, UT)

2006-03-28T23:59:59.000Z

251

Nonlinear magnetoinductive transmission lines  

E-Print Network (OSTI)

Power transmission in one-dimensional nonlinear magnetic metamaterials driven at one end is investigated numerically and analytically in a wide frequency range. The nonlinear magnetic metamaterials are composed of varactor-loaded split-ring resonators which are coupled magnetically through their mutual inductances, forming thus a magnetoiductive transmission line. In the linear limit, significant power transmission along the array only appears for frequencies inside the linear magnetoinductive wave band. We present analytical, closed form solutions for the magnetoinductive waves transmitting the power in this regime, and their discrete frequency dispersion. When nonlinearity is important, more frequency bands with significant power transmission along the array may appear. In the equivalent circuit picture, the nonlinear magnetoiductive transmission line driven at one end by a relatively weak electromotive force, can be modeled by coupled resistive-inductive-capacitive (RLC) circuits with voltage-dependent cap...

Lazarides, Nikos; Tsironis, G P

2011-01-01T23:59:59.000Z

252

Distributed Data-Flow for In-Situ Visualization and Analysis at Petascale  

Science Conference Proceedings (OSTI)

We conducted a feasibility study to research modifications to data-flow architectures to enable data-flow to be distributed across multiple machines automatically. Distributed data-flow is a crucial technology to ensure that tools like the VisIt visualization application can provide in-situ data analysis and post-processing for simulations on peta-scale machines. We modified a version of VisIt to study load-balancing trade-offs between light-weight kernel compute environments and dedicated post-processing cluster nodes. Our research focused on memory overheads for contouring operations, which involves variable amounts of generated geometry on each node and computation of normal vectors for all generated vertices. Each compute node independently decided whether to send data to dedicated post-processing nodes at each stage of pipeline execution, depending on available memory. We instrumented the code to allow user settable available memory amounts to test extremely low-overhead compute environments. We performed initial testing of this prototype distributed streaming framework, but did not have time to perform scaling studies at and beyond 1000 compute-nodes.

Laney, D E; Childs, H R

2009-03-13T23:59:59.000Z

253

Commercial Lining Products  

Science Conference Proceedings (OSTI)

Table 1   Comparative ranking of rubber lining materials...Heat Oxidation Ultraviolet Abrasion Weathering Oil Motor fuels Acid Alkali Flame Natural rubber NR 5 4 4 4 4 6 6 3 3 6 Styrene-butadiene SBR 4 3 3 2 4 5 6 3 3 6 Nitrile NBR 3 3 3 2 3 1 6 4 4 6 Chloroprene CR 2 2 2 3 2 2 3 1 2 2 Chlorosulfonylpolyethylene CSM 2 2 2 3 2 2 2 2 2 3 Isobutylene-isoprene...

254

Tracking Stripped Proton Particles in SNS Ring Injection Momentum Dump Line  

Science Conference Proceedings (OSTI)

3D computer simulations are performed to study magnetic field distributions and particle trajectories along the SNS ring injection momentum dump line. Optical properties and transfer maps along the dump line are calculated. The stripped proton particle distributions on the dump window are analyzed. The study has provided useful information for the redesign of the SNS ring injection beam dump.

Wang, Jian-Guang [ORNL

2011-01-01T23:59:59.000Z

255

Nanoscale SRAM Variability and Optimization  

E-Print Network (OSTI)

area overhead required for short read bit-lines, dual word-word-line samplers contribute to a 16% array area overhead.bit-lines. Although this requires more area overhead, this

Toh, Seng Oon

2011-01-01T23:59:59.000Z

256

Suburban citizenship  

E-Print Network (OSTI)

Powerlink involved overhead lines to be strung from one endthan the planned overhead lines would have been. They arguesaw the overhead high tension power lines as a threat to

Vandehey, Scott Lawrence

2009-01-01T23:59:59.000Z

257

Definition: Deferred Distribution Capacity Investments | Open Energy  

Open Energy Info (EERE)

Deferred Distribution Capacity Investments Deferred Distribution Capacity Investments Jump to: navigation, search Dictionary.png Deferred Distribution Capacity Investments As with the transmission system, reducing the load and stress on distribution elements increases asset utilization and reduces the potential need for upgrades. Closer monitoring and load management on distribution feeders could potentially extend the time before upgrades or capacity additions are required.[1] Related Terms load, transmission lines, transmission line, sustainability References ↑ SmartGrid.gov 'Description of Benefits' An inl LikeLike UnlikeLike You like this.Sign Up to see what your friends like. ine Glossary Definition Retrieved from "http://en.openei.org/w/index.php?title=Definition:Deferred_Distribution_Capacity_Investments&oldid=502613

258

DISTRIBUTION CATEGORY  

Office of Scientific and Technical Information (OSTI)

DISTRIBUTION CATEGORY DISTRIBUTION CATEGORY uc-11 I A W E N C E LIVERMORE IABORATORY University of Cahfmia/Livermore, California/94550 UCRL-52658 CALCULATION OF CHEMICAL EQUILIBRIUM BETWEEN AQUEOUS SOLUTION AND MINERALS: THE EQ3/6 - - SOFTWARE PACKAGE T. J. Wolery MS. date: February 1, 1979 . . - . . - . Tho rcpon rn prepared as an account of work sponsored by the United Stater Government. Seither Lhc Urutcd Stater nor the Umted Stater Department of Energy, nor any of their employees. nor any of their E O ~ ~ ~ B C I O I S . rubcontracton. o r their employees. makes any warranr)., exprcs or !mplwd. or assumes any legal liability or respanability io: the ~ c c u o c y . complctencn or uvfulneu of any miormarlon. apparatcr. product or p r o m s dtwlorcd. or r c p r e v n u that its UP would not infringe privately owned r

259

Utility Lines and Facilities (Montana)  

Energy.gov (U.S. Department of Energy (DOE))

These regulations apply to the construction of utility and power lines and facilities. They address the use of public right-of-ways for such construction, underground power lines, and construction...

260

Strong Lines of Mercury ( Hg )  

Science Conference Proceedings (OSTI)

... Mercury (Hg) Homepage - Introduction Finding list Select element by name. Select element by atomic number. ... Strong Lines of Mercury ( Hg ). ...

Note: This page contains sample records for the topic "overhead distribution lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Strong Lines of Plutonium ( Pu )  

Science Conference Proceedings (OSTI)

... Plutonium (Pu) Homepage - Introduction Finding list Select element by name. Select element by atomic number. ... Strong Lines of Plutonium ( Pu ). ...

262

Strong Lines of Tungsten ( W )  

Science Conference Proceedings (OSTI)

... Tungsten (W) Homepage - Introduction Finding list Select element by name. Select element by atomic number. ... Strong Lines of Tungsten ( W ). ...

263

Strong Lines of Hydrogen ( H )  

Science Conference Proceedings (OSTI)

... Hydrogen (H) Homepage - Introduction Finding list Select element by name. Select element by atomic number. ... Strong Lines of Hydrogen ( H ). ...

264

Simulation of energy performance of underfloor air distribution (UFAD) systems  

E-Print Network (OSTI)

where higher electricity demands are needed during summer..achieves better electricity demand reduction than overhead.to reduce Peak Electricity Demand (PED). Activities such as

2009-01-01T23:59:59.000Z

265

Multi-transmission-line-beam interactive system  

E-Print Network (OSTI)

We construct here a Lagrangian field formulation for a system consisting of an electron beam interacting with a slow-wave structure modeled by a possibly non-uniform multiple transmission line (MTL). In the case of a single line we recover the linear model of a traveling wave tube (TWT) due to J.R. Pierce. Since a properly chosen MTL can approximate a real waveguide structure with any desired accuracy, the proposed model can be used in particular for design optimization. Furthermore, the Lagrangian formulation provides for: (i) a clear identification of the mathematical source of amplification, (ii) exact expressions for the conserved energy and its flux distributions obtained from the Noether theorem. In the case of uniform MTLs we carry out an exhaustive analysis of eigenmodes and find sharp conditions on the parameters of the system to provide for amplifying regimes.

Alexander Figotin; Guillermo Reyes

2013-04-19T23:59:59.000Z

266

Percent Distribution  

Gasoline and Diesel Fuel Update (EIA)

. . Percent Distribution of Natural Gas Supply and Disposition by State, 1996 Table State Estimated Proved Reserves (dry) Marketed Production Total Consumption Alabama................................................................... 3.02 2.69 1.48 Alaska ...................................................................... 5.58 2.43 2.04 Arizona..................................................................... NA 0 0.55 Arkansas.................................................................. 0.88 1.12 1.23 California.................................................................. 1.25 1.45 8.23 Colorado .................................................................. 4.63 2.90 1.40 Connecticut.............................................................. 0 0 0.58 D.C...........................................................................

267

Distributed Generation  

NLE Websites -- All DOE Office Websites (Extended Search)

Untapped Value of Backup Generation Untapped Value of Backup Generation While new guidelines and regulations such as IEEE (Institute of Electrical and Electronics Engineers) 1547 have come a long way in addressing interconnection standards for distributed generation, utilities have largely overlooked the untapped potential of these resources. Under certain conditions, these units (primarily backup generators) represent a significant source of power that can deliver utility services at lower costs than traditional centralized solutions. These backup generators exist today in large numbers and provide utilities with another option to reduce peak load, relieve transmission congestion, and improve power reliability. Backup generation is widely deployed across the United States. Carnegie Mellon's Electricity

268

Antenna structure with distributed strip  

DOE Patents (OSTI)

An antenna comprises electrical conductors arranged to form a radiating element including a folded line configuration and a distributed strip configuration, where the radiating element is in proximity to a ground conductor. The folded line and the distributed strip can be electrically interconnected and substantially coplanar. The ground conductor can be spaced from, and coplanar to, the radiating element, or can alternatively lie in a plane set at an angle to the radiating element. Embodiments of the antenna include conductor patterns formed on a printed wiring board, having a ground plane, spacedly adjacent to and coplanar with the radiating element. Other embodiments of the antenna comprise a ground plane and radiating element on opposed sides of a printed wiring board. Other embodiments of the antenna comprise conductors that can be arranged as free standing "foils". Other embodiments include antennas that are encapsulated into a package containing the antenna.

Rodenbeck, Christopher T. (Albuquerque, NM)

2008-10-21T23:59:59.000Z

269

Antenna structure with distributed strip  

DOE Patents (OSTI)

An antenna comprises electrical conductors arranged to form a radiating element including a folded line configuration and a distributed strip configuration, where the radiating element is in proximity to a ground conductor. The folded line and the distributed strip can be electrically interconnected and substantially coplanar. The ground conductor can be spaced from, and coplanar to, the radiating element, or can alternatively lie in a plane set at an angle to the radiating element. Embodiments of the antenna include conductor patterns formed on a printed wiring board, having a ground plane, spacedly adjacent to and coplanar with the radiating element. Other embodiments of the antenna comprise a ground plane and radiating element on opposed sides of a printed wiring board. Other embodiments of the antenna comprise conductors that can be arranged as free standing "foils". Other embodiments include antennas that are encapsulated into a package containing the antenna.

Rodenbeck, Christopher T. (Albuquerque, NM)

2008-03-18T23:59:59.000Z

270

EC Transmission Line Materials  

SciTech Connect

The purpose of this document is to identify materials acceptable for use in the US ITER Project Office (USIPO)-supplied components for the ITER Electron cyclotron Heating and Current Drive (ECH&CD) transmission lines (TL), PBS-52. The source of material property information for design analysis shall be either the applicable structural code or the ITER Material Properties Handbook. In the case of conflict, the ITER Material Properties Handbook shall take precedence. Materials selection, and use, shall follow the guidelines established in the Materials Assessment Report (MAR). Materials exposed to vacuum shall conform to the ITER Vacuum Handbook. [Ref. 2] Commercial materials shall conform to the applicable standard (e.g., ASTM, JIS, DIN) for the definition of their grade, physical, chemical and electrical properties and related testing. All materials for which a suitable certification from the supplier is not available shall be tested to determine the relevant properties, as part of the procurement. A complete traceability of all the materials including welding materials shall be provided. Halogenated materials (example: insulating materials) shall be forbidden in areas served by the detritiation systems. Exceptions must be approved by the Tritium System and Safety Section Responsible Officers.

Bigelow, Tim S [ORNL

2012-05-01T23:59:59.000Z

271

Optimization and Performance Modeling of Stencil Computations on Modern Microprocessors  

E-Print Network (OSTI)

cache line from main memory requires a higher overhead (C fcache line from main memory, C f irst , by the overhead of

Datta, Kaushik

2009-01-01T23:59:59.000Z

272

Power Efficient Scheduling for Network Applications on Multicore Architecture  

E-Print Network (OSTI)

the overhead for Stop&Go and task migration (line 8-15 inthe least overhead and take appropriate action. (line 8-15)

Kuang, Jilong

2011-01-01T23:59:59.000Z

273

A Debugging System for Sensor Networks  

E-Print Network (OSTI)

more to the left a line is the less overhead, and the morevertical a line is the less overhead. As expected, the 9

Nithya Ramanathan; Kevin Chang; Rahul Kapur; Lewis Girod; Eddie Kohler; Deborah Estrin

2005-01-01T23:59:59.000Z

274

2005 EIA-821 SURVEY: LINE-BY-LINE REFERENCE GUIDE  

U.S. Energy Information Administration (EIA) Indexed Site

Page 1 Page 1 2012 EIA-821 SURVEY: LINE-BY-LINE REFERENCE GUIDE Kerosene Line No. Sold directly to consumers for: 1 Residential Use (Non-Farm): * Backup generator * Home heating and cooking * Personal lawn equipment * EXCLUDE: Apartment buildings and Farmhouses 2 Commercial Use: * Apartment building * Bank * Casino * Church * College/School/Institution * Department/Retail store * Environmental clean-up service * Flushing fuel lines * Forestry service * Golf course * Government (Federal, State, local, and district; INCLUDE fuel used in vehicles) * Hazardous waste company * Hospital * Hotel/Motel * Landfill site government owned * Landscaping * Laundry company * Lumber yard that sells the lumber * Medical service * Port Authority/publicly owned port or loading dock

275

Percent Distribution  

Gasoline and Diesel Fuel Update (EIA)

. . Percent Distribution of Natural Gas Delivered to Consumers by State, 1996 Table State Residential Commercial Industrial Vehicle Fuel Electric Utilities Alabama..................................... 1.08 0.92 2.27 0.08 0.23 Alaska ........................................ 0.31 0.87 0.85 - 1.16 Arizona....................................... 0.53 0.92 0.30 3.91 0.70 Arkansas.................................... 0.88 0.98 1.59 0.11 1.24 California.................................... 9.03 7.44 7.82 43.11 11.64 Colorado .................................... 2.12 2.18 0.94 0.58 0.20 Connecticut................................ 0.84 1.26 0.37 1.08 0.38 D.C............................................. 0.33 0.52 - 0.21 - Delaware.................................... 0.19 0.21 0.16 0.04 0.86 Florida........................................

276

Distribution Category:  

Office of Legacy Management (LM)

- - Distribution Category: Remedial Action and Decommissioning Program (UC-70A) DOE/EV-0005/48 ANL-OHS/HP-84-104 ARGONNE NATIONAL LABORATORY 9700 South Cass Avenue Argonne, Illinois 60439 FORMERLY UTILIZED MXD/AEC SITES REMEDIAL ACTION PROGRAM RADIOLOGICAL SURVEY OF THE HARSHAW CHEMICAL COMPANY CLEVELAND. OHIO Prepared by R. A. Wynveen Associate Division Director, OHS W. H. Smith Senior Health Physicist C. M. Sholeen Health Physicist A. L. Justus Health Physicist K. F. Flynn Health Physicist Radiological Survey Group Health Physics Section Occupational Health and Safety Division April 1984 Work Performed under Budget Activity DOE KN-03-60-40 and ANL 73706 iii PREFACE AND EXECUTIVE SUMMARY This is one in a series of reports resulting from a program initiated

277

Parton distributions.  

E-Print Network (OSTI)

-section for the virtual photon-proton interaction can be written in the factorized form ?(ep ? eX) = ? i CDISi (x, ?s(Q2))? fi(x,Q2) where Q2 is the photon virtuality, x = Q22m? , the mo- mentum fraction of parton (?=energy transfer in the lab frame), and the fi(x,Q2... distribution comes from inclusive jet measure- ments by D0 and CDF at Tevatron. They mea- 0 50 100 -1 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1 Dc 2 k Valence quarks Figure 6. ??2 against the isospin violating parameter ?. sure d?/dET d? for central rapidity CDF...

Thorne, Robert S

278

Radiative Cooling Calculated by Random Band Models with S-1-? Tailed Distribution  

Science Conference Proceedings (OSTI)

Random band models with S-l-u tailed distribution for line intensity are proposed for both the Lorentz lineprofile and an approximate Voigt line profile suggested by Zhu. Such a distribution for the weak line intensityis more realistic than a ...

Xun Zhu

1989-02-01T23:59:59.000Z

279

The Pulse Line Ion Accelerator Concept  

E-Print Network (OSTI)

be modeled as a transmission line with equivalent inductancez , t ) (see Fig. 1), the transmission line equations in thethese elementary transmission line equations are traveling

Briggs, Richard J.

2006-01-01T23:59:59.000Z

280

LINE-ABOVE-GROUND ATTENUATOR  

DOE Patents (OSTI)

The line-above-ground attenuator provides a continuously variable microwave attenuator for a coaxial line that is capable of high attenuation and low insertion loss. The device consists of a short section of the line-above- ground plane type transmission lime, a pair of identical rectangular slabs of lossy material like polytron, whose longitudinal axes are parallel to and indentically spaced away from either side of the line, and a geared mechanism to adjust amd maintain this spaced relationship. This device permits optimum fineness and accuracy of attenuator control which heretofore has been difficult to achieve.

Wilds, R.B.; Ames, J.R.

1957-09-24T23:59:59.000Z

Note: This page contains sample records for the topic "overhead distribution lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Northern Area Rural Power Distribution Project LAO: NOTHERN AREA RURAL POWER DISTRIBUTION  

E-Print Network (OSTI)

To enable Electricit du Laos (EdL) to extend its northern grid, the Asian Development Bank (ADB) is assisting EdL in the construction of a backbone high-voltage transmission network through a Power Transmission and Distribution (PTD) Project 1. The network facilities consist of 115-kV lines from Nam Leuk to Xieng Khouang, Xieng Ngeun to Xayaburi, and Thalat to Muang Feuang and 115/22 kV substations at the end of each line. By the completion of this Project in mid 2003, these backbone lines will permit further high-voltage extension of the northern grid while the substations will enable expanded coverage at 22-kV or 34.5-kV distribution level. The project objectives are to (i) extend the transmission and distribution system in the Northern rural area to provide electricity to rural low-income communities, and to improve their living standards and local economic conditions; (ii) strengthen EdLs project management ability and improve operational efficiency. The scope of the Project includes the following components: Extension of high voltage 115 kV transmission lines with a total length of about 303 km, including 173 km line from Louang Prabang to Oudomxai, and 79 km line from Oudomxai to Louang Namtha, 46 km line from Hin Heup to Vang Vieng, and 5 km line from Nam Ngum to Thalat; Construction of 115/34.5/22 kV substations at Oudomxai, Louang Namtha, Luang Prabang (extension), T tap at Hin Heup substation, Interface at Xaignabouli and Phonsavan substations and some extension work at Vang Vieng and Nam Ngum; Erection of mid-voltage (34.5/22 kV) distribution lines with a total length of about 1,009 km, distribution transformers of 237 sets, and electricity connection of approximately 33,800 households in 342 villages; Clearance of unexploded ordnance (UXO), Miscellaneous works including benefit monitoring program, land acquisition and compensation

Short Resettlement Plan; Short Resettlement Plan; Project Description

2002-01-01T23:59:59.000Z

282

Applications of Line Profile Analysis  

Science Conference Proceedings (OSTI)

Feb 16, 2010 ... Neutron and X-Ray Studies of Advanced Materials III : Applications of Line Profile ... Science: Robert Von Dreele1; 1APS/Argonne National Laboratory .... using an X-ray synchrotron beam line of the Advanced Photon Source.

283

Learning to predict ice accretion on electric power lines  

Science Conference Proceedings (OSTI)

Ice accretion on power transmission and distribution lines is one of the major causes of power grid outages in northern regions. While such icing events are rare, they are very costly. Thus, it would be useful to predict how much ice will accumulate. ... Keywords: Ice accretion, Machine learning, NWP, SVM regression

Ashkan Zarnani; Petr Musilek; Xiaoyu Shi; Xiaodi Ke; Hua He; Russell Greiner

2012-04-01T23:59:59.000Z

284

EIA - Coal Distribution  

U.S. Energy Information Administration (EIA) Indexed Site

Annual Coal Distribution Report > Annual Coal Distribution Archives Annual Coal Distribution Archive Release Date: February 17, 2011 Next Release Date: December 2011 Domestic coal...

285

Software Tackles Production Line Machine ?Cyclic Jitters?  

Science Conference Proceedings (OSTI)

Software Tackles Production Line Machine 'Cyclic ... products, even shutting down assembly lines. ... high-speed data transmission characteristics of ...

2011-07-18T23:59:59.000Z

286

Internal cathodic protection of cement-lined steel pipes  

SciTech Connect

Internally coated, cement-lined, carbon steel pipes have been used extensively for ballast- and service-water systems offshore. Mechanical cracking of the lining, undercutting, and erosion have resulted in corrosion and system leaks. Cathodic protection is one alternative that has been evaluated as a solution. Cathodic protection normally gives limited protection when applied internally to a pipeline system. Tests have been performed to evaluate this hypothesis and the possibility of improved current distribution due to the cement lining. This paper presents the test results as well as a solution to the problem. Internally coated, cement-lined steel pipes are used for ballast-water, service-water, and fire-water systems in the offshore oil and gas production industry.

Jensen, F.O. (Sharpnord Corrosion, P.O. Box 46, 3971 Langesund (NO)); Tems, R.D. (Mobil Exploration Norway, Inc., P.O. Box 510, 4001 Stavanger (NO))

1988-07-01T23:59:59.000Z

287

Electric Transmission Line Siting Compact  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Electric Transmission Line Siting Compact Electric Transmission Line Siting Compact 1 ______________________________________________________________________________ 2 ARTICLE I 3 PURPOSE 4 5 Siting electric transmission lines across state borders and federal lands is an issue for states, the 6 federal government, transmission utilities, consumers, environmentalists, and other stakeholders. 7 The current, multi-year application review process by separate and equal jurisdictions constitutes 8 a sometimes inefficient and redundant process for transmission companies and complicates the 9 efforts of state and federal policy-makers and other stakeholders to develop more robust 10 economic opportunities, increase grid reliability and security, and ensure the consumers have the 11 lowest cost electricity possible. 12

288

Electrical transmission line diametrical retainer  

DOE Patents (OSTI)

The invention is a mechanism for retaining an electrical transmission line. In one embodiment of the invention it is a system for retaining an electrical transmission line within down hole components. In accordance with one aspect of the invention, the system includes a plurality of downhole components, such as sections of pipe in a drill string. The system also includes a coaxial cable running between the first and second end of a drill pipe, the coaxial cable having a conductive tube and a conductive core within it. The invention allows the electrical transmission line to with stand the tension and compression of drill pipe during routine drilling cycles.

Hall, David R. (Provo, UT); Hall, Jr., H. Tracy (Provo, UT); Pixton, David (Lehi, UT); Dahlgren, Scott (Provo, UT); Sneddon, Cameron (Provo, UT); Briscoe, Michael (Lehi, UT); Fox, Joe (Spanish Fork, UT)

2004-12-14T23:59:59.000Z

289

Pulse shaping with transmission lines  

DOE Patents (OSTI)

A method and apparatus for forming shaped voltage pulses uses passive reflection from a transmission line with nonuniform impedance. The impedance of the reflecting line varies with length in accordance with the desired pulse shape. A high voltage input pulse is transmitted to the reflecting line. A reflected pulse is produced having the desired shape and is transmitted by pulse removal means to a load. Light activated photoconductive switches made of silicon can be utilized. The pulse shaper can be used to drive a Pockels cell to produce shaped optical pulses.

Wilcox, R.B.

1985-08-15T23:59:59.000Z

290

Pulse shaping with transmission lines  

DOE Patents (OSTI)

A method and apparatus for forming shaped voltage pulses uses passive reflection from a transmission line with nonuniform impedance. The impedance of the reflecting line varies with length in accordance with the desired pulse shape. A high voltage input pulse is transmitted to the reflecting line. A reflected pulse is produced having the desired shape and is transmitted by pulse removal means to a load. Light activated photoconductive switches made of silicon can be utilized. The pulse shaper can be used to drive a Pockels cell to produce shaped optical pulses.

Wilcox, Russell B. (Oakland, CA)

1987-01-01T23:59:59.000Z

291

Crushed Coal Particle Size Distribution Monitoring  

Science Conference Proceedings (OSTI)

This report summarizes an evaluation of different commercially available technologies for on-line monitoring of crushed coal size distribution with a subsequent laboratory test of the most promising system. The technology evaluation focused on image-based approaches for evaluating crushed coal size distribution that would address previous challenges encountered, including depth of field, image scale dependency upon the distance of the sample from the lens, image shadows caused by perimeter lighting, ...

2013-09-11T23:59:59.000Z

292

Modeling Interregional Transmission Congestion in the National Energy  

E-Print Network (OSTI)

Standard for digital optical transmission (bit pipe) q Developed originally by Bellcore. Standardized Overhead 90 Columns Synchronous Payload Envelope 9 Rows Line Overhead 6 Rows #12;Raj JainThe Ohio State Overhead 3 Rows Path Overhead 270 Columns Synchronous Payload Envelope 9 Rows Line Overhead 6 Rows #12;Raj

293

Terahertz Quantum-Cascade Transmission-Line Metamaterials  

E-Print Network (OSTI)

Terahertz Transmission-Line Metamaterials . . . . . . .CRLH Transmission Lines . . . . . . . . . . . . . . . .Terahertz CRLH Transmission-Line Metamaterials . . . . . . .

Tavallaee, Amir Ali

2012-01-01T23:59:59.000Z

294

GASIFICATION FOR DISTRIBUTED GENERATION  

DOE Green Energy (OSTI)

A recent emphasis in gasification technology development has been directed toward reduced-scale gasifier systems for distributed generation at remote sites. The domestic distributed power generation market over the next decade is expected to be 5-6 gigawatts per year. The global increase is expected at 20 gigawatts over the next decade. The economics of gasification for distributed power generation are significantly improved when fuel transport is minimized. Until recently, gasification technology has been synonymous with coal conversion. Presently, however, interest centers on providing clean-burning fuel to remote sites that are not necessarily near coal supplies but have sufficient alternative carbonaceous material to feed a small gasifier. Gasifiers up to 50 MW are of current interest, with emphasis on those of 5-MW generating capacity. Internal combustion engines offer a more robust system for utilizing the fuel gas, while fuel cells and microturbines offer higher electric conversion efficiencies. The initial focus of this multiyear effort was on internal combustion engines and microturbines as more realistic near-term options for distributed generation. In this project, we studied emerging gasification technologies that can provide gas from regionally available feedstock as fuel to power generators under 30 MW in a distributed generation setting. Larger-scale gasification, primarily coal-fed, has been used commercially for more than 50 years to produce clean synthesis gas for the refining, chemical, and power industries. Commercial-scale gasification activities are under way at 113 sites in 22 countries in North and South America, Europe, Asia, Africa, and Australia, according to the Gasification Technologies Council. Gasification studies were carried out on alfalfa, black liquor (a high-sodium waste from the pulp industry), cow manure, and willow on the laboratory scale and on alfalfa, black liquor, and willow on the bench scale. Initial parametric tests evaluated through reactivity and product composition were carried out on thermogravimetric analysis (TGA) equipment. These tests were evaluated and then followed by bench-scale studies at 1123 K using an integrated bench-scale fluidized-bed gasifier (IBG) which can be operated in the semicontinuous batch mode. Products from tests were solid (ash), liquid (tar), and gas. Tar was separated on an open chromatographic column. Analysis of the gas product was carried out using on-line Fourier transform infrared spectroscopy (FT-IR). For selected tests, gas was collected periodically and analyzed using a refinery gas analyzer GC (gas chromatograph). The solid product was not extensively analyzed. This report is a part of a search into emerging gasification technologies that can provide power under 30 MW in a distributed generation setting. Larger-scale gasification has been used commercially for more than 50 years to produce clean synthesis gas for the refining, chemical, and power industries, and it is probable that scaled-down applications for use in remote areas will become viable. The appendix to this report contains a list, description, and sources of currently available gasification technologies that could be or are being commercially applied for distributed generation. This list was gathered from current sources and provides information about the supplier, the relative size range, and the status of the technology.

Ronald C. Timpe; Michael D. Mann; Darren D. Schmidt

2000-05-01T23:59:59.000Z

295

Shape optimization using reflection lines  

Science Conference Proceedings (OSTI)

Many common objects have highly reflective metallic or painted finishes. Their appearance is primarily defined by the distortion the curved shape of the surface introduces in the reflections of surrounding objects. Reflection lines are commonly used ...

E. Tosun; Y. I. Gingold; J. Reisman; D. Zorin

2007-07-01T23:59:59.000Z

296

Best Practices in the Control Center  

Science Conference Proceedings (OSTI)

In this EPRI Whitepaper, CenterPoint Energy Inc. and EPRI personnel discuss the cyber security practices developed and deployed at CenterPoint's control center over the last decade. Founded in 1882, CenterPoint Energy Inc. owns 27,603 pole miles of overhead distribution lines and 3,727 circuit miles of overhead transmission lines, 19,690 circuit miles of underground distribution lines, 26 circuit miles of underground transmission lines, and 229 substation sites with a capacity of 51,400 megavolt amperes ...

2009-12-01T23:59:59.000Z

297

Doppler Radar Study of the Trailing Anvil Region Associated with a Squall Line  

Science Conference Proceedings (OSTI)

The kinematic structure and reflectivity distribution within a region of widespread precipitation associated with a summertime midlatitude (Illinois) squall line, as revealed by an analysis of Doppler radar data, are presented and discussed. The ...

R. C. Srivastava; T. J. Matejka; T. J. Lorello

1986-02-01T23:59:59.000Z

298

Operator Training Facility at Oncor Utilizing On-Line Training and Instructor User Manuals  

Science Conference Proceedings (OSTI)

This report describes a training program for utility transmission, generation, and distribution operators. The program developed an on-line user's guide to Oncor's Transmission Management System (TMS) and an instructor's guide for its Operator Training Simulator (OTS).

2002-12-06T23:59:59.000Z

299

fault diagnosis of a high voltage transmission line using waveform ...  

E-Print Network (OSTI)

Oct 4, 2013 ... FAULT DIAGNOSIS OF A HIGH VOLTAGE TRANSMISSION LINE USING ... Fault types such as single line to ground, line to line, double line to...

300

Power Line Calculator for Windows[trademark  

SciTech Connect

The Power Line Calculator (PLC) for Windows [trademark], version 1.0, is a program that describes the electrical characteristics of a transmission or distribution system given user-defined input. This input may consist of a combination of operating currents and phases, symmetric components, power factor, and real or reactive power. The program also allows the user to designate whether currents are present on the system neutral or in the ground. The PLC assumes that any value entered by the user remains fixed (e.g., phase current, power factor), and for underdetermined systems, basic default assumptions are incorporated: the power factor is held at or near 1.0, the net phase current is kept at or near zero, and the phase conductor currents are kept balanced. The program operates through a graphical user interface provided by Microsoft[reg sign] Windows [trademark] (version 3.1 or higher required), and the output is available in both tabular and graphic formats.

Silva, J.M. (Enertech Consultants, Campbell, CA (United States))

1992-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "overhead distribution lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

High impedance fault location in transmission line using nonlinear frequency analysis  

Science Conference Proceedings (OSTI)

The detection and location of high impedance faults on power system has been one of the most difficult problems in power transmission and distribution systems. According to a very highly nonlinear behavior of high impedance faults, a methodology is presented ... Keywords: high impedance fault, nonlinear frequency analysis, power line carrier, transmission line

Min-You Chen; Jin-Qian Zhai; Zi-Qiang Lang; Ju-Cheng Liao; Zhao-Yong Fan

2010-09-01T23:59:59.000Z

302

Timeline: a high performance archive for a distributed object store  

Science Conference Proceedings (OSTI)

This paper describes TimeLine, an efficient archive service for a distributed storage system. TimeLine allows users to take snapshots on demand. The archive is stored online so that it is easily accessible to users. It enables "time travel" in which ...

Chuang-Hue Moh; Barbara Liskov

2004-03-01T23:59:59.000Z

303

COBE Observations of Interstellar Line Emission  

E-Print Network (OSTI)

The FIRAS instrument on the COBE satellite has conducted an unbiased survey of the far-infrared emission from our Galaxy. The first results of this survey were reported by Wright et al. (1991), and later conclusions were reported in Bennett et al. (1994). I report the results of analyses of this spectral survey, which includes emission lines from 158 micron C+, 122 micron and 205 micron N+, 370 micron and 609 micron neutral C, and CO J=2-1 through 5-4. The morphological distribution along the galactic plane (b=0 deg) for all the spectral line emission, and the high galactic latitude intensities of the strong C+ and 205 micron N+ emission are discussed. The high galactic latitude intensity of the 158 micron fine structure transition from C+ is I = (1.43 +/- 0.12)*1E-6 csc|b| erg/cm^2/s/sr for |b| > 15 deg and it decreases more rapidly than the far infrared intensity with increasing galactic latitude.

Edward L. Wright

1996-12-10T23:59:59.000Z

304

Two terminal line voltage thermostat  

Science Conference Proceedings (OSTI)

A two terminal line voltage thermostat includes a switch which effectively connects line voltage to a heater load. The entire process is controlled by an integrated circuit microcontroller which is powered by a rectified voltage from a transformer secondary connected to a primary which is in series with the heater load. Backup battery power is provided to maintain limited functions of the microcontroller in the event of overall power loss. The microcontroller is programmed to meet the temperature sensing and control requirements specific to a two terminal electric baseboard heating installation. 7 figs.

Stalsberg, K.J.; Ingalls, J.E.; Hoglund, S.R.

1995-10-10T23:59:59.000Z

305

Pretzelosity distribution function  

E-Print Network (OSTI)

The 'pretzelosity' distribution is discussed. Theoretical properties, model results, and perspectives to access experimental information on this leading twist, transverse momentum dependent parton distribution function are reviewed. Its relation to helicity and transversity distributions is highlighted.

H. Avakian; A. V. Efremov; P. Schweitzer; F. Yuan

2008-08-28T23:59:59.000Z

306

LO Generation and Distribution for 60GHz Phased Array Transceivers  

E-Print Network (OSTI)

Transmission Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . .Tapered Transmission Line Resonators . . . . . . . . .transmission lines. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Marcu, Cristian

2011-01-01T23:59:59.000Z

307

LO Generation and Distribution for 60GHz Phased Array Transceivers  

E-Print Network (OSTI)

Transmission Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . .transmission lines. . . . . . . . . . . . . . . . . . . . . . . . . . . . .Tapered Transmission Line Resonators . . . . . . . . .

Marcu, Cristian

2011-01-01T23:59:59.000Z

308

Annual Coal Distribution Report  

Gasoline and Diesel Fuel Update (EIA)

Annual Coal Distribution Report Release Date: December 19, 2013 | Next Release Date: November 2014 | full report | RevisionCorrection Revision to the Annual Coal Distribution...

309

Coiled transmission line pulse generators  

DOE Patents (OSTI)

Methods and apparatus are provided for fabricating and constructing solid dielectric "Coiled Transmission Line" pulse generators in radial or axial coiled geometries. The pour and cure fabrication process enables a wide variety of geometries and form factors. The volume between the conductors is filled with liquid blends of monomers, polymers, oligomers, and/or cross-linkers and dielectric powders; and then cured to form high field strength and high dielectric constant solid dielectric transmission lines that intrinsically produce ideal rectangular high voltage pulses when charged and switched into matched impedance loads. Voltage levels may be increased by Marx and/or Blumlein principles incorporating spark gap or, preferentially, solid state switches (such as optically triggered thyristors) which produce reliable, high repetition rate operation. Moreover, these Marxed pulse generators can be DC charged and do not require additional pulse forming circuitry, pulse forming lines, transformers, or an a high voltage spark gap output switch. The apparatus accommodates a wide range of voltages, impedances, pulse durations, pulse repetition rates, and duty cycles. The resulting mobile or flight platform friendly cylindrical geometric configuration is much more compact, light-weight, and robust than conventional linear geometries, or pulse generators constructed from conventional components. Installing additional circuitry may accommodate optional pulse shape improvements. The Coiled Transmission Lines can also be connected in parallel to decrease the impedance, or in series to increase the pulse length.

McDonald, Kenneth Fox (Columbia, MO)

2010-11-09T23:59:59.000Z

310

Applications of Distributed Resources for Distribution Companies: Business Plans and Strategies  

Science Conference Proceedings (OSTI)

The impact of more widespread distributed resources (DR) will be complex and affect many business lines and disciplines within utilities. Not every DR application is going to be a good fit for a given utility or its customers; some applications could even potentially "strand" transmission and distribution (T&D) investments and increase costs to other customers. Addressing DR at a strategic level, this report examines potential DR business strategies and tactics and provides utility planners with insights...

2003-01-23T23:59:59.000Z

311

Scientific Computing Kernels on the Cell Processor  

E-Print Network (OSTI)

200 lines of common code. The programming overhead of theselines results in high bandwidth utiliza- tion and su?ciently amortizes the omnipresent 1000 cycle DMA latency overhead,

Williams, Samuel W.; Shalf, John; Oliker, Leonid; Kamil, Shoaib; Husbands, Parry; Yelick, Katherine

2008-01-01T23:59:59.000Z

312

Grand Valley Rrl Pwr Line, Inc | Open Energy Information  

Open Energy Info (EERE)

Pwr Line, Inc Pwr Line, Inc Jump to: navigation, search Name Grand Valley Rrl Pwr Line, Inc Place Colorado Utility Id 7563 Utility Location Yes Ownership C NERC Location WECC NERC WECC Yes Activity Distribution Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png Commercial and Small Power Service, Three Phase Schedule (25)-CSP-1 Commercial Farm and Home (Residential) Service Schedule (10)-FH-1 Residential Industrial Service Schedule (50) -IND-1 Industrial Irrigation Service Schedule (40)-I-1 Commercial Large Power Service Schedule (30) -LP-1 Industrial Nonresidential - General Schedule (20)-NRG-1 Commercial

313

Smart Distribution Applications for Distributed Energy Resources  

Science Conference Proceedings (OSTI)

P180.014 Smart Distribution Applications for Distributed Energy Resources (070625)The factors listed below all support the proliferation of Distributed Generating (DG) units in electric utility systems. The growing rate of DG deployment suggests that alternative energy-based solutions play an increasingly important role in the smart grid and modern utility.Deregulation of the electric utility industry in some countriesEnvironmental ...

2013-08-16T23:59:59.000Z

314

Use of Transmission Line Easements for Benefit of Native Bees  

Science Conference Proceedings (OSTI)

The management of vegetation on electric utility rights-of-way (ROWs) is an essential part of managing electrical transmission and distribution systems. This study examines the impact of habitat vegetation management in transmission line easements on native bee communities. The study emphasizes quantitative testing of whether management strategies such as integrated vegetation management, seeding, and plantingall of which differ from the standard mechanical removal of tall vegetation through episodic mow...

2011-12-20T23:59:59.000Z

315

Signal encoding for party-line digital data transmission  

E-Print Network (OSTI)

A digital encoding method is described which permits a single clock generator to synchronise data transmission on a party-line busbar shared by many transceivers. The requirements for either a separate busbar for clock distribution or individual clocks in each transceiver are eliminated by the use of a signal set which allows the busbar to carry data and synchronising information generated simultaneously by separate sources. (10 refs).

Taylor, B G

1975-01-01T23:59:59.000Z

316

Edge region hydrogen line emission in the PDX tokamak  

DOE Green Energy (OSTI)

Measurements of the H/sub ..cap alpha../ line shape and of the spatial distribution of the H/sub ..cap alpha../ emissivity in the PDX tokamak are interpreted in terms of molecular dissociation reactions at the plasma edge. The influx of molecules is shown to be roughly proportional to the edge emission intensity over a wide range of temperatures. The H/sub 2/ particle lifetime is estimated for various types of discharges in PDX.

McNeill, D.H.; Bell, M.G.; Grek, B.; LeBlanc, B.

1984-02-01T23:59:59.000Z

317

A reactor core on-line monitoring program - COMP  

Science Conference Proceedings (OSTI)

A program named COMP is developed for on-line monitoring PWRs' in-core power distribution in this paper. Harmonics expansion method is used in COMP. The Unit 1 reactor of Daya Bay Nuclear Power Plant (Daya Bay NPP) in China is considered for verification. The numerical results show that the maximum relative error between measurement and reconstruction results from COMP is less than 5%, and the computing time is short, indicating that COMP is capable for online monitoring PWRs. (authors)

Wang, C. [State Nuclear Power Software Development Center, Beijing, 100029 (China); School of Nuclear Science and Technology, Xi'an Jiaotong Univ. (China); Building 1, Compound No.29, North Third Ring Road, Xicheng District, Beijing, 100029 (China); Wu, H.; Cao, L. [School of Nuclear Science and Technology, Xi'an Jiaotong Univ. (China)

2012-07-01T23:59:59.000Z

318

Edge region hydrogen line emission in the PDX tokamak  

DOE Green Energy (OSTI)

Measurements of the H/sub ..cap alpha../ line shape and of the spatial distribution of H/sub ..cap alpha../ emissivity in the PDX tokamak are interpreted in terms of molecular dissociation reactions at the plasma edge. The in-flux of molecules is shown to be roughly proportional to the edge emission intensity over a wide range of temperatures. The H/sub 2/ particle lifetime is estimated for various types of discharges in PDX.

McNeill, D.H.; Bell, M.G.; Grek, B.; LeBlanc, B.

1984-04-01T23:59:59.000Z

319

A faster distributed protocol for constructing a minimum spanning tree  

Science Conference Proceedings (OSTI)

This paper studies the problem of constructing a minimum-weight spanning tree (MST) in a distributed network. This is one of the most important problems in the area of distributed computing. There is a long line of gradually improving protocols ...

Michael Elkin

2004-01-01T23:59:59.000Z

320

A Novel Distributed Simulation Approach in Adaptive Distance Relaying  

Science Conference Proceedings (OSTI)

In this paper, an adaptive distance relaying strategy based on the global network simulation (GNS) concept is presented. The GNS concept is actually a distributed simulation approach (DSA) for piecewise analysis of large-scale power grids using diakoptics ... Keywords: adaptive distance relaying, coordination rules, diakoptics, distributed simulation approach (DSA), global network simulation (GNS), large change sensitivity (LCS), mutually coupled lines

V. Gohari Sadr; S.M. Kouhsari

2009-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "overhead distribution lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Supporting Deadline Constrained Distributed Computations on Grids  

Science Conference Proceedings (OSTI)

The growing popularity of grid and cloud computing has led to a renewed interest in resource control and coordination. The Actor model, which encapsulates objects along with threads of execution, offers a convenient way for scheduling computations' access ... Keywords: Adaptive scheduling, overhead tuning, actors

Xinghui Zhao; Nadeem Jamali

2011-09-01T23:59:59.000Z

322

Extension of the weak-line approximation and application to correlated-k methods  

Science Conference Proceedings (OSTI)

Global climate models require accurate and rapid computation of the radiative transfer through the atmosphere. Correlated-k methods are often used. One of the approximations used in correlated-k models is the weakline approximation. We introduce an approximation T/sub g/ which reduces to the weak-line limit when optical depths are small, and captures the deviation from the weak-line limit as the extinction deviates from the weak-line limit. This approximation is constructed to match the first two moments of the gamma distribution to the k-distribution of the transmission. We compare the errors of the weak-line approximation with T/sub g/ in the context of a water vapor spectrum. The extension T/sub g/ is more accurate and converges more rapidly than the weak-line approximation.

Conley, A.J.; Collins, W.D.

2011-03-15T23:59:59.000Z

323

Parallel and distributed particle collision simulation with decentralized control  

Science Conference Proceedings (OSTI)

Scientific computing applicationswith highly demanding data capacity and computation power drive a computing platform migration from shared memory machines to multi-core/multiprocessor computer clusters. However, overheads in coordinating operations ...

Ruipeng Li; Hai Jiang; Hung-Chi Su; Bin Zhang; Jeff Jenness

2008-05-01T23:59:59.000Z

324

Zigzag Survey Designs in Line Transect Sampling  

E-Print Network (OSTI)

survey lines are frequently used in shipboard and aerial line transect surveys of animal populations; Systematic designs; Zigzag designs. 1. INTRODUCTION Shipboard and aerial line transect surveys are widelyZigzag Survey Designs in Line Transect Sampling Samantha STRINDBERG and Stephen T. BUCKLAND Zigzag

Buckland, Steve

325

BOREAS Survey On-Line  

NLE Websites -- All DOE Office Websites (Extended Search)

FF33"> FF33"> BOREAS Survey On-Line To improve the BOREAS and BOREAS Follow-On data sets and to meet users' needs, we are conducting a survey. The BOREAS and BOREAS Follow-On data sets continue to be important products at the ORNL DAAC. To date we have provided over 8,000 data products from these projects to nearly 1,500 users. We invite you to fill out this survey, identifying any problems you had with the data and documentation or any difficulties you experienced in finding and acquiring the data sets. Information you provide will enable us to address problems that need attention. It will also help us determine which aspects of the BOREAS and BOREAS Follow-On information need to be expanded. You can complete the survey at the BOREAS Home Page. After you complete the on-line survey, submit your answers to the ORNL

326

Beam line windows at LAMPF  

Science Conference Proceedings (OSTI)

The A-6 main beam-line window at LAMPF separates the vacuum of the main beam line from the isotope production station, proton irradiation ports, and the beam stop, which operate in air. This window must withstand the design beam current of 1 mA at 800 MeV for periods of at least 3000 hours without failure. The window is water cooled and must be strong enough to withstand the 2.1 MPa (300 psig) cooling water pressure, as well as beam-induced thermal stresses. Two designs have been used to meet these goals, a stepped-plate window and a hemispherical window, both made from a precipitation-hardened nickel base alloy, Alloy 718. Calculations of the temperatures and stresses in each of these windows are presented.

Brown, R.D.; Grisham, D.L.; Lambert, J.E.

1985-01-01T23:59:59.000Z

327

INTEGRATED VERTICAL AND OVERHEAD DECONTAMINATION (IVOD) SYSTEM  

Science Conference Proceedings (OSTI)

The deactivation and decommissioning of 1200 buildings within the U.S. Department of Energy-Office of Environmental Management complex will require the disposition of a large quantity of contaminated concrete and metal surfaces. It has been estimated that 23 million cubic meters of concrete and over 600,000 tons of metal will need disposition. The disposition of such large quantities of material presents difficulties in the area of decontamination and characterization. The final disposition of this large amount of material will take time and money as well as risk to the D&D work force. A single automated system that would decontaminate and characterize surfaces in one step would not only reduce the schedule and decrease cost during D&D operations but would also protect the D&D workers from unnecessary exposures to contaminated surfaces. This report summarizes the activities performed during FY00 and describes the planned activities for FY01. Accomplishments for FY00 include the following: Development and field-testing of characterization system; Completion of Title III design of deployment platform and decontamination unit; In-house testing of deployment platform and decontamination unit; Completion of system integration design; Identification of deployment site; and Completion of test plan document for deployment of IVOD at Rancho Seco nuclear power facility.

M.A. Ebadian, Ph.D.

2001-01-01T23:59:59.000Z

328

In-Line Thermoelectric Module  

DOE Patents (OSTI)

A thermoelectric module with a plurality of electricity generating units each having a first end and a second end, the units being arranged first end to second end along an-in-line axis. Each unit includes first and second elements each made of a thermoelectric material, an electrically conductive hot member arranged to heat one side of the first element, and an electrically conductive cold member arranged to cool another side of the first element and to cool one side of the second element. The hot member, the first element, the cold member and the second element are supported in a fixture, are electrically connected respectively to provide an electricity generating unit, and are arranged respectively in positions along the in-line axis. The individual components of each generating unit and the respective generating units are clamped in their in-line positions by a loading bolt at one end of the fixture and a stop wall at the other end of the fixture. The hot members may have a T-shape and the cold members an hourglass shape to facilitate heat transfer. The direction of heat transfer through the hot members may be perpendicular to the direction of heat transfer through the cold members, and both of these heat transfer directions maybe perpendicular to the direction-of current flow through the module.

Pento, Robert; Marks, James E.; Staffanson, Clifford D.

1998-07-28T23:59:59.000Z

329

In-line thermoelectric module  

DOE Patents (OSTI)

A thermoelectric module with a plurality of electricity generating units each having a first end and a second end, the units being arranged first end to second end along an in-line axis. Each unit includes first and second elements each made of a thermoelectric material, an electrically conductive hot member arranged to heat one side of the first element, and an electrically conductive cold member arranged to cool another side of the first element and to cool one side of the second element. The hot member, the first element, the cold member and the second element are supported in a fixture, are electrically connected respectively to provide an electricity generating unit, and are arranged respectively in positions along the in-line axis. The individual components of each generating unit and the respective generating units are clamped in their in-line positions by a loading bolt at one end of the fixture and a stop wall at the other end of the fixture. The hot members may have a T-shape and the cold members an hourglass shape to facilitate heat transfer. The direction of heat transfer through the hot members may be perpendicular to the direction of heat transfer through the cold members, and both of these heat transfer directions may be perpendicular to the direction of current flow through the module.

Pento, Robert (Algonquin, IL); Marks, James E. (Glenville, NY); Staffanson, Clifford D. (S. Glens Falls, NY)

2000-01-01T23:59:59.000Z

330

Distributed Wind - Economical, Clean Energy for Industrial Facilities  

E-Print Network (OSTI)

Distributed wind energy works for industrial clients. Corporations and other organizations are choosing to add Distributed Wind energy to their corporate goals for a numerous reasons: economic, environmental, marketing, values, and attracting new employees to name a few. The energy and economic impact of these projects can vary widely and be difficult to demonstrate. This paper and presentation will explore the appropriate application and bottom line economics of distributed wind energy through the review of two case studies.

Trapanese, A.; James, F.

2011-01-01T23:59:59.000Z

331

Advanced Sensor Technology Applications for Smart Distribution Systems  

Science Conference Proceedings (OSTI)

The desire to operate distribution systems efficiently and reliably is causing utilities to consider methods for increasing the number of monitoring points on their distribution feeders. Traditionally, installing metering-class current transformers (CTs) and potential transformers (PTs) on the distribution lines to monitor selected points on feeders was standard practice. Vendors have now developed high-accuracy current and voltage sensorsand some sensors that combine both measurementswhich accurately mo...

2010-12-09T23:59:59.000Z

332

Distributed Energy Storage Systems Testing and Evaluation 2010 Interim Results  

Science Conference Proceedings (OSTI)

Distributed Energy Storage Systems (DESS) are fully integrated AC storage devices which can be located within the distribution system, at substation locations, off distribution feeders, near end-of-line pad mounted transformers, or on customer side of the meter locations. Many new and emerging storage systems are being developed for grid support, outage mitigation, power quality and peak load energy management. However there is limited operational data on performance, grid comparability, durability, reli...

2010-12-20T23:59:59.000Z

333

Quantum Key Distribution  

Science Conference Proceedings (OSTI)

... resulting in a pattern of light and dark lines ... whether the time is in seconds or days: factoring was ... decrypts to 'CAT', or 'TPW', which decrypts to 'DOG'. ...

2007-10-26T23:59:59.000Z

334

Circular, confined distribution for charged particle beams  

DOE Patents (OSTI)

A charged particle beam line is formed with magnetic optics that manipulate the charged particle beam to form the beam having a generally rectangular configuration to a circular beam cross-section having a uniform particle distribution at a predetermined location. First magnetic optics form a charged particle beam to a generally uniform particle distribution over a square planar area at a known first location. Second magnetic optics receive the charged particle beam with the generally square configuration and affect the charged particle beam to output the charged particle beam with a phase-space distribution effective to fold corner portions of the beam toward the core region of the beam. The beam forms a circular configuration having a generally uniform spatial particle distribution over a target area at a predetermined second location. 26 figs.

Garnett, R.W.; Dobelbower, M.C.

1995-11-21T23:59:59.000Z

335

Circular, confined distribution for charged particle beams  

DOE Patents (OSTI)

A charged particle beam line is formed with magnetic optics that manipulate the charged particle beam to form the beam having a generally rectangular configuration to a circular beam cross-section having a uniform particle distribution at a predetermined location. First magnetic optics form a charged particle beam to a generally uniform particle distribution over a square planar area at a known first location. Second magnetic optics receive the charged particle beam with the generally square configuration and affect the charged particle beam to output the charged particle beam with a phase-space distribution effective to fold corner portions of the beam toward the core region of the beam. The beam forms a circular configuration having a generally uniform spatial particle distribution over a target area at a predetermined second location.

Garnett, Robert W. (Los Alamos, NM); Dobelbower, M. Christian (Toledo, OH)

1995-01-01T23:59:59.000Z

336

Coal Distribution Database, 2006  

U.S. Energy Information Administration (EIA) Indexed Site

2009 Final February 2011 2 Overview of 2009 Coal Distribution Tables Introduction The Coal Distribution Report - Annual provides detailed information on domestic coal distribution by origin state, destination state, consumer category, and method of transportation. Also provided is a summary of foreign coal distribution by coal-producing State. This Final 2009 Coal Distribution Report - Annual, supersedes the data contained in the four Quarterly Coal Distribution Reports previously issued for 2009. This report relies on the most current data available from EIA's various monthly, quarterly and annual surveys of the coal industry and electric power generation industry. In addition, the report

337

Calculation of electric field and audible noise from transmission lines with non-parallel conductors  

Science Conference Proceedings (OSTI)

In order to investigate the feasibility of using new transmission line configurations with non-parallel conductors, for managing magnetic field in critical areas, techniques are needed to assess the effects of different three-dimensional line arrangements on other important design parameters. A new method for calculation of electric field and corona-generated audible noise from non-parallel conductors is described and implemented as a computer tool. This method uses linearly varying line charges to simulate charge distribution along the axial direction of the transmission line. New algorithms are developed for calculating electric field and audible noise due to non-uniform line charges and illustrated by examples of low magnetic field transmission line designs.

Liu, Y. [Virginia Tech, Blacksburg, VA (United States); Zaffanella, L.E. [Enertech Consultants, Lee, MA (United States)

1996-07-01T23:59:59.000Z

338

Progress in solar thermal distributed receiver technology  

DOE Green Energy (OSTI)

The author reports the status of research on distributed receivers, which are solar thermal collectors which concentrate sunlight on an absorber and do not employ the central receiver concept. Point-focusing collectors such as the parabolic dish, line-focusing collectors such as the parabolic trough, and the fixed-mirror distributed-focus of hemispheric bowl collectors are the most common receivers. Following an overview of fundamental principals, there is a description of several installations and of the organic Rankine Cycle engine and the Solarized Automotive Gas Turbine projects. Future development will explore other types of power cycles, new materials, and other components and designs. 5 references, 6 figures.

Leonard, J.A.; Otts, J.V.

1985-08-01T23:59:59.000Z

339

Spectral energy distribution for GJ406  

E-Print Network (OSTI)

We present results of modelling the bulk of the spectral energy distribution (0.35 - 5 micron) for GJ406 (M6V). Synthetic spectra were calculated using the NextGen, Dusty and Cond model atmospheres and incorporate line lists for H2O, TiO, CrH, FeH, CO, MgH molecules as well as the VALD line list of atomic lines. A comparison of synthetic and observed spectra gives Tef = 2800 +/- 100 K. We determine M$_bol = 12.13 +/- 0.10 for which evolutionary models by Baraffe et al. (2003) suggest an age of around 0.1 -- 0.35 Gyr consistent with its high activity. The age and luminosity of GJ406 correspond to a wide range of plausible masses (0.07 -- 0.1 Msun).

Pavlenko, Ya V; Lyubchik, Y; Tennyson, J; Pinfield, D J; Pavlenko, Ya. V.; Lyubchik, Yu.

2005-01-01T23:59:59.000Z

340

Spectral energy distribution for GJ406  

E-Print Network (OSTI)

We present results of modelling the bulk of the spectral energy distribution (0.35 - 5 micron) for GJ406 (M6V). Synthetic spectra were calculated using the NextGen, Dusty and Cond model atmospheres and incorporate line lists for H2O, TiO, CrH, FeH, CO, MgH molecules as well as the VALD line list of atomic lines. A comparison of synthetic and observed spectra gives Tef = 2800 +/- 100 K. We determine M$_bol = 12.13 +/- 0.10 for which evolutionary models by Baraffe et al. (2003) suggest an age of around 0.1 -- 0.35 Gyr consistent with its high activity. The age and luminosity of GJ406 correspond to a wide range of plausible masses (0.07 -- 0.1 Msun).

Ya. V. Pavlenko; H. R. A. Jones; Yu. Lyubchik; J. Tennyson; D. J. Pinfield

2005-10-19T23:59:59.000Z

Note: This page contains sample records for the topic "overhead distribution lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Coal Distribution Database, 2006  

U.S. Energy Information Administration (EIA) Indexed Site

Domestic Distribution of U.S. Coal by Origin State, Domestic Distribution of U.S. Coal by Origin State, Consumer, Destination and Method of Transportation, 2009 Final February 2011 2 Overview of 2009 Coal Distribution Tables Introduction The Coal Distribution Report - Annual provides detailed information on domestic coal distribution by origin state, destination state, consumer category, and method of transportation. Also provided is a summary of foreign coal distribution by coal-producing State. This Final 2009 Coal Distribution Report - Annual, supersedes the data contained in the four Quarterly Coal Distribution Reports previously issued for 2009. This report relies on the most current data available from EIA's various monthly, quarterly and annual surveys

342

Raindrop Size Distribution  

Science Conference Proceedings (OSTI)

This paper reviews some of the published results relating to raindrop-size distributions and couples this with some of the authors' results in order to show that the mathematical description of the distribution can be divided into three ...

M. C. Hodson

1986-07-01T23:59:59.000Z

343

Transversity Parton Distribution  

E-Print Network (OSTI)

Transversity distribution is one of the three fundamental parton distributions that completely describe polarized spin 1/2 nucleon. Its chiral odd nature prevented for many years its experimental exploration, however presently we have obtained great deal of information about this distribution. This includes experimental data from Semi Inclusive Deep Inelastic Scattering, knowledge of scale dependence and phenomenological extractions. I will discuss main features of this distribution and indicate the future improvements of our knowledge.

Alexei Prokudin

2013-04-01T23:59:59.000Z

344

Facility location: distributed approximation  

Science Conference Proceedings (OSTI)

In this paper, we initiate the study of the approximability of the facility location problem in a distributed setting. In particular, we explore a trade-off between the amount of communication and the resulting approximation ratio. We give a distributed ... Keywords: distributed approximation, facility location, linear programming, primal-dual algorithms

Thomas Moscibroda; Rogert Wattenhofer

2005-07-01T23:59:59.000Z

345

Sympathy for the Sensor Network Debugger  

E-Print Network (OSTI)

tios represent less overhead, so lines towards the left areoverhead correlates with how often nodes send metrics. Each line

Ramanathan, Nithya; Chang, Kevin; Kapur, Rahul; Girod, Lewis; Kohler, Eddie; Estrin, D

2005-01-01T23:59:59.000Z

346

Flashover Characteristics Along the Epoxy Resin Insulator under DC Voltage in SF6 Gas  

Science Conference Proceedings (OSTI)

In order to promote the flexibility about the selection of transmission corridor, DC gas insulated transmission line (GIL) can be utilized to substitute part of the overhead line or cable in special environment. Key factors that greatly threaten the ... Keywords: surface charge accumulation, flashover voltage, surface conductivity, time constant, electric field distribution, geometry

Zhijie Jia; Ping Liu; Jianming Li; Lin Yang

2012-03-01T23:59:59.000Z

347

Distribution Drive | Open Energy Information  

Open Energy Info (EERE)

Drive Drive Jump to: navigation, search Name Distribution Drive Place Dallas, Texas Zip 75205 Product Biodiesel fuel distributor. Coordinates 32.778155°, -96.795404° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":32.778155,"lon":-96.795404,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

348

Tropical Squall Lines of the Arizona Monsoon  

Science Conference Proceedings (OSTI)

Squall lines possessing nearly all the characteristics of tropical squall lines occasionally develop during the summer monsoon over southern Arizona and northwestern Mexico. Initial thunderstorm formation is over the Continental Divide in the ...

Walter P. Smith; Robert L. Gall

1989-07-01T23:59:59.000Z

349

Squall-Line Intensification via Hydrometeor Recirculation  

Science Conference Proceedings (OSTI)

Many studies have demonstrated the intimate connection between microphysics and deep moist convection, especially for squall lines via cold pool pathways. The present study examines four numerically simulated idealized squall lines using the ...

Robert B. Seigel; Susan C. van den Heever

2013-07-01T23:59:59.000Z

350

Potential Vorticity Anomalies Associated with Squall Lines  

Science Conference Proceedings (OSTI)

This study involves observations and model simulations of potential vorticity anomalies in the wake of midlatitude squall lines. Using data from the OklahomaKansas PRE-STORM experiment, we analyze potential vorticity fields near two squall lines...

Rolf F. A. Hertenstein; Wayne H. Schubert

1991-07-01T23:59:59.000Z

351

A Computer Package for Transmission Line Analysis  

Science Conference Proceedings (OSTI)

A computer program, LIGNE, has been developed as a comprehensive teaching aid for the section on transmission line theory in an electromagnetics course. The program assists the student in the analysis of transmission lines, enabling him to quickly assess ...

Georges-Andre Chaudron; Manfred Nachman

1987-11-01T23:59:59.000Z

352

Distribution Integrity Management Plant (DIMP)  

SciTech Connect

This document is the distribution integrity management plan (Plan) for the Los Alamos National Laboratory (LANL) Natural Gas Distribution System. This Plan meets the requirements of 49 CFR Part 192, Subpart P Distribution Integrity Management Programs (DIMP) for the LANL Natural Gas Distribution System. This Plan was developed by reviewing records and interviewing LANL personnel. The records consist of the design, construction, operation and maintenance for the LANL Natural Gas Distribution System. The records system for the LANL Natural Gas Distribution System is limited, so the majority of information is based on the judgment of LANL employees; the maintenance crew, the Corrosion Specialist and the Utilities and Infrastructure (UI) Civil Team Leader. The records used in this report are: Pipeline and Hazardous Materials Safety Administration (PHMSA) 7100.1-1, Report of Main and Service Line Inspection, Natural Gas Leak Survey, Gas Leak Response Report, Gas Leak and Repair Report, and Pipe-to-Soil Recordings. The specific elements of knowledge of the infrastructure used to evaluate each threat and prioritize risks are listed in Sections 6 and 7, Threat Evaluation and Risk Prioritization respectively. This Plan addresses additional information needed and a method for gaining that data over time through normal activities. The processes used for the initial assessment of Threat Evaluation and Risk Prioritization are the methods found in the Simple, Handy Risk-based Integrity Management Plan (SHRIMP{trademark}) software package developed by the American Pipeline and Gas Agency (APGA) Security and Integrity Foundation (SIF). SHRIMP{trademark} uses an index model developed by the consultants and advisors of the SIF. Threat assessment is performed using questions developed by the Gas Piping Technology Company (GPTC) as modified and added to by the SHRIMP{trademark} advisors. This Plan is required to be reviewed every 5 years to be continually refined and improved. Records for all piping system installed after the effective date of this Plan will be captured and retained in the UI records documentation system. Primary Utility Asbuilts are maintained by Utilities Mapping (UMAP) and additional records are maintained on the N drive. Engineering Change Notices (ECNs) are stored on the N drive under configuration management and kept up by Utilities and Infrastructure Division Office (UI-DO). Records include, at a minimum, the location where new piping and appurtenances are installed and the material of which they are constructed.

Gonzales, Jerome F. [Los Alamos National Laboratory

2012-05-07T23:59:59.000Z

353

Methods of Using Existing Wire Lines (power lines, phone lines, internet lines) for Totally Secure Classical Communication Utilizing Kirchoff's Law and Johnson-like Noise  

E-Print Network (OSTI)

We outline some general solutions to use already existing and currently used wire lines, such as power lines, phone lines, internet lines, etc, for the unconditionally secure communication method based on Kirchoff's Law and Johnson-like Noise (KLJN). Two different methods are shown. One is based on filters used at single wires and the other one utilizes a common mode voltage superimposed on a three-phase powerline.

Laszlo B. Kish

2006-10-02T23:59:59.000Z

354

Capillary electrophoresis-fluorescence line narrowing system (CE-FLNS) for on-line structural characterization  

DOE Patents (OSTI)

Capillary electrophoresis (CE) is interfaced with low temperature fluorescence line-narrowing (FLN) spectroscopy for on-line structural characterization of separated molecular analytes.

Jankowiak, Ryszard J. (Ames, IA); Small, Gerald J. (Ames, IA); Shields, Peter A. (Reading, MA)

1999-04-27T23:59:59.000Z

355

EIA -Quarterly Coal Distribution  

U.S. Energy Information Administration (EIA) Indexed Site

Coal Distribution Coal Distribution Home > Coal> Quarterly Coal Distribution Back Issues Quarterly Coal Distribution Archives Release Date: June 27, 2013 Next Release Date: September 2013 The Quarterly Coal Distribution Report (QCDR) provides detailed quarterly data on U.S. domestic coal distribution by coal origin, coal destination, mode of transportation and consuming sector. All data are preliminary and superseded by the final Coal Distribution - Annual Report. Year/Quarters By origin State By destination State Report Data File Report Data File 2009 January-March pdf xls pdf xls April-June pdf xls pdf xls July-September pdf xls pdf October-December pdf xls pdf 2010 January-March pdf xls pdf xls April-June pdf xls pdf xls July-September pdf xls pdf xls

356

Practical pairwise testing for software product lines  

Science Conference Proceedings (OSTI)

One key challenge for software product lines is efficiently managing variability throughout their lifecycle. In this paper, we address the problem of variability in software product lines testing. We (1) identify a set of issues that must be addressed ... Keywords: feature modelling, software product lines, variability management

Dusica Marijan, Arnaud Gotlieb, Sagar Sen, Aymeric Hervieu

2013-08-01T23:59:59.000Z

357

Visualizing DIII-D Tokamak magnetic field lines  

Science Conference Proceedings (OSTI)

Keywords: graphics hardware, haloed lines, illuminated lines, interactive visualization, magentic field, plasma physics, tokamak

Greg Schussman; Kwan-Liu Ma; David Schissel; Todd Evans

2000-10-01T23:59:59.000Z

358

Neutron Drip-Line Topography  

Science Conference Proceedings (OSTI)

The development of microscopic mass models is a crucial ingredient for the understanding of how most of the elements of our world were fabricated. Confidence in drip-line predictions of such models requires their comparison with new mass data for nuclides far from stability. We combine theory and experiment using results that are state of the art: the latest mass measurements from the Penning-trap spectrometer ISOLTRAP at CERN-ISOLDE are used to confront the predictions of the latest Skyrme-Hartree-Fock-Bogoliubov (HFB) microscopic mass models. In addition, we compare the new data to predictions of other types of mass models and the extrapolative behavior of the various models is analyzed to highlight topographical trends along the shores of the nuclear chart.

Ramirez, E. Minaya; Audi, G.; Lunney, D.; Naimi, S. [Centre de Spectrometrie Nucleaire et de Spectrometrie de Masse, Universite Paris Sud, Orsay (France); Beck, D.; Herfurth, F. [GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt (Germany); Blaum, K.; Borgmann, C.; George, S.; Kellerbauer, A. [Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany); Boehm, Ch.; Neidherr, D. [Institut fuer Physik, Johannes-Gutenberg-Universitaet, Mainz (Germany); Breitenfeldt, M.; Rosenbusch, M.; Schweikhard, L. [Institut fuer Physik, Ernst-Moritz-Arndt-Universitaet, Greifswald (Germany); Chamel, N.; Goriely, S. [Institut d'Astronomie et d'Astrophysique, Universite Libre de Bruxelles (Belgium); Herlert, A.; Kowalska, M. [Physics Department, Centre European de Recherche Nucleaire, Geneva (Switzerland); Pearson, J. M. [Department of Physics, Universite de Montreal, Montreal, Quebec (Canada)] (and others)

2009-08-26T23:59:59.000Z

359

Gamma-Ray Burst Lines  

E-Print Network (OSTI)

The evidence for spectral features in gamma-ray bursts is summarized. As a guide for evaluating the evidence, the properties of gamma-ray detectors and the methods of analyzing gamma-ray spectra are reviewed. In the 1980's, observations indicated that absorption features below 100 keV were present in a large fraction of bright gamma-ray bursts. There were also reports of emission features around 400 keV. During the 1990's the situation has become much less clear. A small fraction of bursts observed with BATSE have statistically significant low-energy features, but the reality of the features is suspect because in several cases the data of the BATSE detectors appear to be inconsistent. Furthermore, most of the possible features appear in emission rather than the expected absorption. Analysis of data from other instruments has either not been finalized or has not detected lines.

Michael S. Briggs

1999-10-20T23:59:59.000Z

360

Magnetically insulated transmission line oscillator  

DOE Patents (OSTI)

A magnetically insulated transmission line oscillator employs self-generated magnetic fields to generate microwave energy. An anode of the oscillator includes slow-wave structures which are formed of a plurality of thin conductive vanes defining cavities therebetween, and a gap is formed between the anode and a cathode of the oscillator. In response to a pulsed voltage applied to the anode and cathode, self-generated magnetic fields arfe produced in a cross-field orientation with respect to the orientation of the electric field between the anode and the cathode. The cross-field magnetic fields insulate the flow of electrons in the gap and confine the flow of electrons within the gap.

Bacon, Larry D. (Albuquerque, NM); Ballard, William P. (Albuquerque, NM); Clark, M. Collins (Albuquerque, NM); Marder, Barry M. (Albuquerque, NM)

1988-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "overhead distribution lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Superconducting transmission line particle detector  

DOE Patents (OSTI)

A microvertex particle detector for use in a high energy physic collider including a plurality of parallel superconducting thin film strips separated from a superconducting ground plane by an insulating layer to form a plurality of superconducting waveguides. The microvertex particle detector indicates passage of a charged subatomic particle by measuring a voltage pulse measured across a superconducting waveguide caused by the transition of the superconducting thin film strip from a superconducting to a non- superconducting state in response to the passage of a charged particle. A plurality of superconducting thin film strips in two orthogonal planes plus the slow electromagnetic wave propagating in a superconducting transmission line are used to resolve N/sup 2/ ambiguity of charged particle events. 6 figs.

Gray, K.E.

1988-07-28T23:59:59.000Z

362

Magnetically insulated transmission line oscillator  

DOE Patents (OSTI)

A magnetically insulated transmission line oscillator employs self-generated magnetic fields to generate microwave energy. An anode of the oscillator includes slow-wave structures which are formed of a plurality of thin conductive vanes defining cavities therebetween, and a gap is formed between the anode and a cathode of the oscillator. In response to a pulsed voltage applied to the anode and cathode, self-generated magnetic fields are produced in a cross-field orientation with respect to the orientation of the electric field between the anode and the cathode. The cross-field magnetic fields insulate the flow of electrons in the gap and confine the flow of electrons within the gap. 11 figs.

Bacon, L.D.; Ballard, W.P.; Clark, M.C.; Marder, B.M.

1987-05-19T23:59:59.000Z

363

On-line transformer monitoring  

Science Conference Proceedings (OSTI)

There are presently many different approaches to transformer monitoring, either on the market or under development. There are also, many different opinions about how on-line monitoring should be accomplished. On the one hand, efforts are being made to develop expert systems that monitor all transformer parameters and generate an estimate of overall transformer condition. On the other hand, a large number of transformer monitors, designed to monitor one or two specific parameters are already on the market. Another important factor to consider in choosing a monitor is who receives the information and how it is transmitted. The ultimate transformer monitor should feed into the supervisory control and data acquisition (Scada) system. This paper discusses the various aspects of this issue including asset protection, cost control, dissolved gases, pinpointing bad bushings and current transformers, hot spot measurement partial discharge, and water-in-oil measurements. 10 figs.

NONE

1995-10-01T23:59:59.000Z

364

Superconducting transmission line particle detector  

DOE Patents (OSTI)

A microvertex particle detector for use in a high energy physic collider including a plurality of parallel superconducting thin film strips separated from a superconducting ground plane by an insulating layer to form a plurality of superconducting waveguides. The microvertex particle detector indicates passage of a charged subatomic particle by measuring a voltage pulse measured across a superconducting waveguide caused by the transition of the superconducting thin film strip from a superconducting to a non-superconducting state in response to the passage of a charged particle. A plurality of superconducting thin film strips in two orthogonal planes plus the slow electromagnetic wave propogating in a superconducting transmission line are used to resolve N.sup.2 ambiguity of charged particle events.

Gray, Kenneth E. (Naperville, IL)

1989-01-01T23:59:59.000Z

365

Separation of magnetic field lines  

SciTech Connect

The field lines of magnetic fields that depend on three spatial coordinates are shown to have a fundamentally different behavior from those that depend on two coordinates. Unlike two-coordinate cases, a flux tube in a magnetic field that depends on all three spatial coordinates that has a circular cross section at one location along the tube characteristically has a highly distorted cross section at other locations. In an ideal evolution of a magnetic field, the current densities typically increase. Crudely stated, if the current densities increase by a factor {sigma}, the ratio of the long to the short distance across a cross section of a flux tube characteristically increases by e{sup 2{sigma}}, and the ratio of the longer distance to the initial radius increases as e{sup {sigma}}. Electron inertia prevents a plasma from isolating two magnetic field structures on a distance scale shorter than c/{omega}{sub pe}, which is about 10 cm in the solar corona, and reconnection must be triggered if {sigma} becomes sufficiently large. The radius of the sun, R{sub Circled-Dot-Operator }=7 Multiplication-Sign 10{sup 10}cm is about e{sup 23} times larger, so when {sigma} Greater-Than-Or-Equivalent-To 23, two lines separated by c/{omega}{sub pe} at one location can be separated by the full scale of any magnetic structures in the corona at another. The conditions for achieving a large exponentiation, {sigma}, are derived, and the importance of exponentiation is discussed.

Boozer, Allen H. [Department of Applied Physics and Applied Mathematics, Columbia University, New York, New York 10027 (United States)

2012-11-15T23:59:59.000Z

366

The Wardle Instability in Interstellar Shocks; 2, Gas Temperature and Line Emission  

E-Print Network (OSTI)

We have modeled the gas temperature structure in unstable C-type shocks and obtained predictions for the resultant CO and H2 rotational line emissions, using numerical simulations of the Wardle instability that were carried out by Stone (1997) and that have been described in a companion paper. We obtained results for the gas temperature distribution in -- and H2 and CO line emission from -- shocks of neutral Alfvenic Mach number 10 and velocity 20 or 40 km/sec in which the Wardle instability has saturated. Although the Wardle instability profoundly affects the density structure behind C-type shocks, most of the shock-excited molecular line emission is generated upstream of the region where the strongest effects of the instability are felt. Thus the Wardle instability has a relatively small effect upon the overall gas temperature distribution in -- and the emission line spectrum from -- C-type shocks, at least for the cases that we have considered.

Neufeld, D A; Neufeld, David A.; Stone, James M.

1997-01-01T23:59:59.000Z

367

The calculation of satellite line structures in highly stripped plasmas  

SciTech Connect

This is the final report of a three-year, Laboratory Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANL). Recently developed high-resolution x-ray spectrographs have made it possible to measure satellite structures from various plasma sources with great detail. These lines are weak optically thin lines caused by the decay of dielectronic states and generally accompany the resonance lines of H-like and He-like ions. The Los Alamos atomic physics and kinetics codes provide a unique capability for calculating the position and intensities of such lines. These programs have been used to interpret such highly resolved spectral measurements from pulsed power devices and laser produced plasmas. Some of these experiments were performed at the LANL Bright Source and Trident laser facilities. The satellite structures are compared with calculations to diagnose temperatures and densities. The effect of non-thermal electron distributions of electrons on calculated spectra was also considered. Collaborations with Russian scientists have added tremendous value to this research die to their vast experience in x-ray spectroscopy.

Abdallah, J. Jr.; Kilcrease, D.P. [Los Alamos National Lab., NM (United States); Faenov, A.Ya.; Pikuz, T.A. [Multicharged Ion Spectra Data Center, Moscow (Russian Federation)

1998-11-01T23:59:59.000Z

368

Elastic Wave Radiation from a Line Source of Finite Length  

SciTech Connect

Straightforward algebraic expressions describing the elastic wavefield produced by a line source of finite length are derived in circular cylindrical coordinates. The surrounding elastic medium is assumed to be both homogeneous and isotropic, anc[ the source stress distribution is considered axisymmetic. The time- and space-domain formulae are accurate at all distances and directions from the source; no fa-field or long-wavelength assumptions are adopted for the derivation. The mathematics yield a unified treatment of three different types of sources: an axial torque, an axial force, and a radial pressure. The torque source radiates only azirnuthally polarized shear waves, whereas force and pressure sources generate simultaneous compressional and shear radiation polarized in planes containing the line source. The formulae reduce to more familiar expressions in the two limiting cases where the length of the line source approaches zero and infinity. Far-field approximations to the exact equations indicate that waves radiated parallel to the line source axI.s are attenuated relative to those radiated normal to the axis. The attenuation is more severe for higher I?equencies and for lower wavespeeds. Hence, shear waves are affected more than compressional waves. This fi-equency- and directiondependent attenuation is characterized by an extremely simple mathematical formula, and is readily apparent in example synthetic seismograms.

Aldridge, D.F.

1998-11-04T23:59:59.000Z

369

Interactive Transmission Line Computer Program for Undergraduate Teaching  

E-Print Network (OSTI)

Distributed-circuit analysis using transmission lines is a standard topic in undergraduate education in electrical engineering and computer engineering. This paper presents a simple menu-driven program that students can use to explore the behavior of transmission line circuits, and as a computational laboratory for verifying their solutions to homework problems. At the introductory level the program demonstrates traveling waves and standing waves. Smith-chart calculations of impedance and reflection coefficient can be associated with the standing-wave pattern on the transmission line. A branching circuit can be solved, including impedance matching with a quarter-wave transformer. At the intermediate level, students can use the program to test their designs for two- and three-step Chebyshev transformers, and for impedance matching using single, double and triple-stub circuits. The program makes easy the calculation of the bandwidth of a design by displaying the return loss or transmission loss as a function of frequency. Low-pass and bandstop filters can be solved. The program encourages students to explore the behavior of the voltages and currents on the lines as the frequency is changed to gain insight into the operation of transformers, matching schemes and filters.

Christopher W. Trueman

2000-01-01T23:59:59.000Z

370

Computing criticality of lines in power systems  

E-Print Network (OSTI)

Abstract We propose a computationally efficient method based on nonlinear optimization to identify critical lines, failure of which can cause severe blackouts. Our method computes criticality measure for all lines at a time, as opposed to detecting a single vulnerability, providing a global view of the system. This information on criticality of lines can be used to identify multiple contingencies by selectively exploring multiple combinations of broken lines. The effectiveness of our method is demonstrated on the IEEE 30 and 118 bus systems, where we can very quickly detect the most critical lines in the system and identify severe multiple contingencies. I.

Ali P?nar; Adam Reichert; Bernard Lesieutre

2007-01-01T23:59:59.000Z

371

Antenna with distributed strip and integrated electronic components  

DOE Patents (OSTI)

An antenna comprises electrical conductors arranged to form a radiating element including a folded line configuration and a distributed strip configuration, where the radiating element can be in proximity to a ground conductor and/or arranged as a dipole. Embodiments of the antenna include conductor patterns formed on a printed wiring board, having a ground plane, spacedly adjacent to and coplanar with the radiating element. An antenna can comprise a distributed strip patterned on a printed wiring board, integrated with electronic components mounted on top of or below the distributed strip, and substantially within the extents of the distributed strip. Mounting of electronic components on top of or below the distributed strip has little effect on the performance of the antenna, and allows for realizing the combination of the antenna and integrated components in a compact form. An embodiment of the invention comprises an antenna including a distributed strip, integrated with a battery mounted on the distributed strip.

Rodenbeck, Christopher T. (Albuquerque, NM); Payne, Jason A. (Albuquerque, NM); Ottesen, Cory W. (Albuquerque, NM)

2008-08-05T23:59:59.000Z

372

From devil to angel, transmission lines boost parallel computing of linear resistor networks  

E-Print Network (OSTI)

Transmission line is always big trouble for integrated circuits designers; however, it could be of great help to the parallel computing of extremely large linear resistor networks. In this paper, we introduce the virtual transmission method (VTM), which brings virtual transmission lines into linear resistor networks to achieve distributed and asynchronous parallel computing in the virtual time domain. Numerical experiments show that VTM could be efficiently running on the 2D or 3D microprocessor with arbitrary number of cores.

Wei, Fei

2009-01-01T23:59:59.000Z

373

Line Extension Alternatives | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Line Extension Alternatives Line Extension Alternatives Line Extension Alternatives < Back Eligibility Utility Savings Category Energy Sources Buying & Making Electricity Solar Wind Program Info State Vermont Program Type Line Extension Analysis Provider Vermont Department of Public Service The Public Service Board (PSB) of Vermont developed rules regarding utility line extension requests. While the majority of the rules focus on the procedure followed (and associated fees) for the actual line extensions, the PSB also included a provision that requires the electric utilities to provide written information to customers about off-grid electricity generators as an alternative to line extensions. The PSB recognized that in many cases off-grid electricity generators are less expensive than

374

Line Extension Analysis | Open Energy Information  

Open Energy Info (EERE)

Line Extension Analysis Line Extension Analysis Jump to: navigation, search When a prospective electric customer requests service for a home or facility that is not currently serviced by the electric grid, the customer usually must pay a distance-based fee for the cost of extending power lines to the home or facility. In many cases, it is cheaper to use an on-site renewable energy system to meet a prospective customer’s electricity needs. Certain states require utilities to provide information regarding renewable energy options when prospective customers request a line extension. [1] Line Extension Analysis Incentives CSV (rows 1 - 12) Incentive Incentive Type Place Applicable Sector Eligible Technologies Active Authorization of Line Extension (Nebraska) Line Extension Analysis Nebraska Agricultural

375

Estes-Flatiron Transmission Line Rebuild  

NLE Websites -- All DOE Office Websites (Extended Search)

Estes-Flatiron Transmission Line Rebuild Estes-Flatiron Transmission Line Rebuild Skip Navigation Links Transmission Functions Infrastructure projects Interconnection OASIS OATT Estes-Flatiron Transmission Line Rebuild Project Western Area Power Administration proposes to rebuild approximately 32 miles of double wood-pole structure 115-kilovolt transmission line that exists between Estes Park and Flatiron Reservoir in Larimer County, Colo. The proposal would remove 16 miles of transmission line, and modernize 16 miles to steel-pole double-circuit 115-kV transmission line. The reduction and modernizing of transmission lines will occur on Federal, state and private lands. The public parcels are administered by the Arapaho and Roosevelt National Forest, which is a cooperating agency in the project.

376

DistributionDrive | Open Energy Information  

Open Energy Info (EERE)

DistributionDrive DistributionDrive Jump to: navigation, search Name DistributionDrive Place Addison, Texas Zip 75001 Product Supplier of Biodiesel, Straight Vegetable Oil (SVO), Recycled Vegetable Oil (WVO) and Engine Conversion Kits to use this fuels. Coordinates 38.477365°, -80.412149° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":38.477365,"lon":-80.412149,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

377

Nord Distribution Solaire | Open Energy Information  

Open Energy Info (EERE)

Nord Distribution Solaire Nord Distribution Solaire Jump to: navigation, search Name Nord Distribution Solaire Place Roubaix, France Zip 59100 Sector Solar Product An installation company for solar passive and PV system in the North of France. Coordinates 50.691705°, 3.1752° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":50.691705,"lon":3.1752,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

378

Distributed Generation Systems Inc | Open Energy Information  

Open Energy Info (EERE)

Distributed Generation Systems Inc Distributed Generation Systems Inc Name Distributed Generation Systems Inc Address 200 Union Blvd Place Lakewood, Colorado Zip 80228 Sector Wind energy Product Developer of electricity generation wind power facilities Website http://www.disgenonline.com/ Coordinates 39.718048°, -105.1324055° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.718048,"lon":-105.1324055,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

379

Distributed Resource Integration Framework  

Science Conference Proceedings (OSTI)

This report defines a framework for assessing current issues and considerations associated with the deployment and operation of distributed resources. The framework is a guide that can assist utility personnel, distributed resource owners, and other stakeholders in planning integration projects and in relating different integration projects to one another. The framework provides a structured organization of the various elements associated with distributed resource integration, including regulatory, busin...

2009-12-23T23:59:59.000Z

380

Advanced Distribution Monitoring  

Science Conference Proceedings (OSTI)

Advanced Distribution Automation (ADA) is a concept for a fully controllable and flexible distribution system that will facilitate the exchange of electrical energy AND information between participants and system components. Advances in the monitoring of system parameters like voltages, currents and breaker/switch positions as well as environmental variables like temperature and wind speed will be required in order to fully implement ADA. This report presents background information on distribution monito...

2005-12-05T23:59:59.000Z

Note: This page contains sample records for the topic "overhead distribution lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Nuclear vorticity and the low-energy nuclear response - Towards the neutron drip line  

E-Print Network (OSTI)

The transition density and current provide valuable insight into the nature of nuclear vibrations. Nuclear vorticity is a quantity related to the transverse transition current. In this work, we study the evolution of the strength distribution, related to density fluctuations, and the vorticity strength distribution, as the neutron drip line is approached. Our results on the isoscalar, natural-parity multipole response of Ni isotopes, obtained by using a self-consistent Skyrme-Hartree-Fock + Continuum RPA model, indicate that, close to the drip line, the low-energy response is dominated by L>1 vortical transitions.

P. Papakonstantinou; J. Wambach; E. Mavrommatis; V. Yu. Ponomarev

2004-11-16T23:59:59.000Z

382

Distributed computing environment in the ESnet Community  

Science Conference Proceedings (OSTI)

The Energy Sciences Network (ESnet) Community is undertaking an ambitious project to coordinate its distributed computing. A reasonable question is: ''Why Coordinate Distributed Computing?'' Without a coordinating element, the number of links for communicating between a number of nodes would grow with order N {sup 2}. Inserting an effective coordinating principle can reduce the number of independently managed links to order N while still leaving all of the links available for actual communications. A good example from telecommunications is the public phone system where one relies on central coordination of the phone numbers rather than having to personally negotiate the switching information with everyone with whom one wishes to communicate. The Internet's distributed system of name servers is another good example. The meta-question to the first question is: ''Why use distributed computing?'' The answer can be put in three parts: Individual end users require access to far more information and computational resources than they can acquire locally. For some applications, distributed computers are nearly as efficient as centralized computers and the total CPU resources available may be significant. Many resources are unique. They cannot easily be replicated. Some examples in the DOE community include research accelerators, fusion facilities, systems of virtual caves, and environmental laboratories. The overall response to the questions can be summarized in the concept of virtual laboratories. Humans want their resources responding within a second and at arm's length or closer. Using coordinated distributed computing, these requirements can be met by placing facilities on-line via Internet style technologies. Further, human communication is 10% verbal, 40% audio and 50% physiological. Using combinations of words, sounds and pictures including animation, virtual laboratory technologies can exploit all of these aspects of human communication. The human end user receives the benefit of virtual presence at on-line facilities and makes use of a rich collection of resources.

R. Roy Whitney

1995-10-01T23:59:59.000Z

383

Distribution reliability analysis.  

E-Print Network (OSTI)

??This thesis presents an example for optimization of distribution maintenance scheduling of a recloser. It applies a risk reduction technique associated with maintenance of the (more)

Bhusal, Prabodh

2007-01-01T23:59:59.000Z

384

MEMORANDUM FOR DISTRIBUTION  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

* Department of Energy Washington, DC 20585 December 20, 2007 MEMORANDUM FOR DISTRIBUTION FROM: MICHAEL W. OWEN

385

Essays on wealth distribution.  

E-Print Network (OSTI)

?? The U.S. wealth distribution has three prominent features: a fat tail, skewness to the right, and a high Gini coefficient. Among these three features (more)

Zhu, Shenghao

2010-01-01T23:59:59.000Z

386

Email Distribution Lists  

NLE Websites -- All DOE Office Websites (Extended Search)

Email Distribution Lists The NSLS maintains several email lists to disseminate information to BNL staff and users as well as DOE officials and other interested people. The...

387

The Beta Maxwell Distribution.  

E-Print Network (OSTI)

??In this work we considered a general class of distributions gener- ated from the logit of the beta random variable. We looked at various works (more)

Amusan, Grace Ebunoluwa

2010-01-01T23:59:59.000Z

388

Photon Generalized Parton Distributions  

E-Print Network (OSTI)

We present a calculation of the generalized parton distributions of the photon using overlaps of photon light-front wave functions.

Asmita Mukherjee; Sreeraj Nair

2011-09-30T23:59:59.000Z

389

Photon Generalized Parton Distributions  

E-Print Network (OSTI)

We present a calculation of the generalized parton distributions of the photon using overlaps of photon light-front wave functions.

Mukherjee, Asmita

2011-01-01T23:59:59.000Z

390

Cooling water distribution system  

DOE Patents (OSTI)

A passive containment cooling system for a nuclear reactor containment vessel. Disclosed is a cooling water distribution system for introducing cooling water by gravity uniformly over the outer surface of a steel containment vessel using an interconnected series of radial guide elements, a plurality of circumferential collector elements and collector boxes to collect and feed the cooling water into distribution channels extending along the curved surface of the steel containment vessel. The cooling water is uniformly distributed over the curved surface by a plurality of weirs in the distribution channels.

Orr, Richard (Pittsburgh, PA)

1994-01-01T23:59:59.000Z

391

EIS Distribution | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

EIS Distribution EIS Distribution This DOE guidance presents a series of recommendations related to the EIS distribution process, which includes creating and updating a...

392

A molecular line and continuum study of water maser sources  

E-Print Network (OSTI)

and the submm cores 131 6.1 Maser excitation 131 6.1.1 The water molecule and maser theory 131 6.1.2 Models 134 6.2 Comparison with observations 137 7 Conclusions 143 7.1 The maser environment 144 7.2 The longevity of the maser phase 145 7.3 Maser excitation 146... wavelengths was the hydroxyl radical, OH (Weinreb et al. 1963). The simultaneous detection of four OH lines, corresponding to the rotation levels of this molecule splitting into four states, provides information on the population distribution; signi ficant de...

Jenness, Timothy

1996-12-10T23:59:59.000Z

393

Quasi-equilibrium electron density along a magnetic field line  

SciTech Connect

A methodology is developed to determine the density of high-energy electrons along a magnetic field line for a low-{beta} plasma. This method avoids the expense and statistical noise of traditional particle tracking techniques commonly used for high-energy electrons in bombardment plasma generators. By preserving the magnetic mirror and assuming a mixing timescale, typically the elastic collision frequency with neutrals, a quasi-equilibrium electron distribution can be calculated. Following the transient decay, the analysis shows that both the normalized density and the reduction fraction due to collision converge to a single quasi-equilibrium solution.

Mao, Hann-Shin; Wirz, Richard [Department of Mechanical and Aerospace Engineering, University of California, Los Angeles, California 90095 (United States)

2012-11-26T23:59:59.000Z

394

Method and apparatus for reducing the harmonic currents in alternating-current distribution networks  

DOE Patents (OSTI)

An improved apparatus and method reduce the harmonic content of AC line and neutral line currents in polyphase AC source distribution networks. The apparatus and method employ a polyphase Zig-Zag transformer connected between the AC source distribution network and a load. The apparatus and method also employs a mechanism for increasing the source neutral impedance of the AC source distribution network. This mechanism can consist of a choke installed in the neutral line between the AC source and the Zig-Zag transformer.

Beverly, Leon H. (Lockport, IL); Hance, Richard D. (Elburn, IL); Kristalinski, Alexandr L. (Naperville, IL); Visser, Age T. (Geneva, IL)

1996-01-01T23:59:59.000Z

395

Method and apparatus for reducing the harmonic currents in alternating-current distribution networks  

DOE Patents (OSTI)

An improved apparatus and method reduce the harmonic content of AC line and neutral line currents in polyphase AC source distribution networks. The apparatus and method employ a polyphase Zig-Zag transformer connected between the AC source distribution network and a load. The apparatus and method also employs a mechanism for increasing the source neutral impedance of the AC source distribution network. This mechanism can consist of a choke installed in the neutral line between the AC source and the Zig-Zag transformer. 23 figs.

Beverly, L.H.; Hance, R.D.; Kristalinski, A.L.; Visser, A.T.

1996-11-19T23:59:59.000Z

396

Overview: Physical & DataLink LayersOverview: Physical & DataLink Layers How are frames assembled and transmitted ?  

E-Print Network (OSTI)

is SONET?What is SONET? q Synchronous optical network q Standard for digital optical transmission (bit pipe Section Overhead 3 Rows Path Overhead 90 Columns Synchronous Payload Envelope 9 Rows Line Overhead 6 Rows Line Overhead 6 Rows #12;Raj JainThe Ohio State University 13 Location of SPE in STS-1Location of SPE

Murphy, John

397

Fitting an Exponential Distribution  

Science Conference Proceedings (OSTI)

Exponential distributions of the type N = N0 exp(??t) occur with a high frequency in a wide range of scientific disciplines. This paper argues against a widely spread method for calculating the ? parameter in this distribution. When the ln ...

Roberto Fraile; Eduardo Garca-Ortega

2005-10-01T23:59:59.000Z

398

Modeling the Loss Distribution  

Science Conference Proceedings (OSTI)

In this paper, we focus on modeling and predicting the loss distribution for credit risky assets such as bonds and loans. We model the probability of default and the recovery rate given default based on shared covariates. We develop a new class of default ... Keywords: Basel II, default prediction, loss distribution, recovery rates

Sudheer Chava; Catalina Stefanescu; Stuart Turnbull

2011-07-01T23:59:59.000Z

399

Distribution Arc Flash  

Science Conference Proceedings (OSTI)

Arc flash from faults on 480-V circuits is a safety issue that can impact utility work. This report covers results from tests of arc flash and fabric performance from faults in 480-V network protectors and padmounted transformers. It supplements EPRI report 1018694, Distribution Arc Flash: Industry Practices and EPRI report 1018693, Distribution Arc Flash: Analysis Methods and Arc Characteristics.

2009-08-31T23:59:59.000Z

400

On-chip interconnect architectures : perspectives of layout, circuits, and systems  

E-Print Network (OSTI)

dissipation overhead of the transmission line shunts is onlyk vias aligned in a line, the track overhead on the middleoverhead = 9 Figure II.17: Via tunnels with vias aligned in a line

Chen, Hongyu

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "overhead distribution lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Large-Scale Variability Characterization and Robust Design Techniques for Nanoscale SRAM  

E-Print Network (OSTI)

The overall area overhead of the bit-line switch network inlow overhead, the proposed direct bit- line characterizationoverhead can be further reduced with an optimized layout of the bit-line

Guo, Zheng

2009-01-01T23:59:59.000Z

402

Checking the Data Sharing Strategies of Concurrent Systems Level Code  

E-Print Network (OSTI)

lines of applica- tion and benchmark code, and observe manageable overheadssmall (about 400k lines) Linux kernel. Overhead incurred byover 500k lines of code. Runtime overhead av- eraged 11%

Anderson, Zachary Ryan

2010-01-01T23:59:59.000Z

403

The He II Fowler lines and the O III and N III Bowen fluorescence lines in the symbiotic nova RR Tel  

E-Print Network (OSTI)

A new measure of reddening (E$_{(B-V)}$$\\sim$0.00) has been obtained from the comparison between the observed and the theoretical intensity decrement for 20 emission lines of the $\\ion{He}{ii}$ Fowler (n$\\to$3) series. This value has been confirmed by the STIS and IUE continuum distribution, and by the value of n$_H$ from the damped profile of the IS H Ly-$\\alpha$ line. We have obtained very accurate measurements for about thirty Bowen lines of $\\ion{O}{iii}$ and a precise determination of the efficiency in the O1 and O3 excitation channels (18 % and 0.7 %, respectively). The relative $\\ion{O}{iii}$ intensities are in good agreement with the predictions by Froese Fischer (1994). A detailed study of the decays from all levels involved in the Bowen mechanism has lead to the detection of two new $\\ion{O}{iii}$ Bowen lines near $\\lambda$ 2190. High resolution IUE data have shown a nearly linear decline with time, from 1978 to 1995, in the efficiency of the O1 and O3 processes, with a steeper slope for the O3 channel. A detailed study of the $\\ion{N}{iii}$ $\\lambda$ 4640 lines and of their excitation mechanism has shown that, recombination and continuum fluorescence being ruled out, line fluorescence remains the only viable mechanism to pump the 3d $^2D_{5/2}$ and 3d $^2D_{3/2}$ levels of $\\ion{N}{iii}$. We point out the important role of multiple scattering in the resonance lines of $\\ion{O}{iii}$ and $\\ion{N}{iii}$ near $\\lambda$ 374 and show that the observed $\\ion{N}{iii}$ line ratios and intensities can be explained in terms of line fluorescence by the three resonance lines of $\\ion{O}{iii}$ at $\\lambda$$\\lambda$ 374.432, 374.162 and 374.073 under optically thick conditions.

P. Selvelli; J. Danziger; P. Bonifacio

2006-11-30T23:59:59.000Z

404

Single transmission line data acquisition system  

DOE Patents (OSTI)

A single transmission line interrogated multiple channel data acquisition system is provided in which a plurality of remote station/sensors monitor specific process variables and transmit measurement values over the single transmission line to a master station when addressed by the master station. Power for all remote stations (up to 980) is provided by driving the line with constant voltage supplied from the master station and automatically maintained independent of the number of remote stations directly connected to the line. The transmission line can be an RG-62 coaxial cable with lengths up to about 10,000 feet with branches up to 500 feet. The remote stations can be attached randomly along the line. The remote stations can be scanned at rates up to 980 channels/second.

Fasching, George E. (Morgantown, WV)

1984-01-01T23:59:59.000Z

405

Magnetic Materials for Broadband Transmission Line  

E-Print Network (OSTI)

The authors series of articles on broadband transmission line transformers (TLTs) concludes with these notes on magnetic materials and the properties that are important for best performance Ferrite and iron powder magnetic materials were developed to support a wide range of components, including inductors, EMI suppressors, conventional transformers and transmission line transformers (TLTs). This article deals with transmission line transformers, presenting the observations and conclusions of the author, reached after extensive experimental research into the behavior and performance of these devices in broadband applications. Figure 1 The three transformers used in comparing the performance of the autotransformer and the transmission line transformer. At the top left is an autotransformer; at the top right is the transmission line transformer, while at the bottom is a transmission line transformer without a ferrite core. All transformers had a total of 10 turns.

Jerry Sevick

2005-01-01T23:59:59.000Z

406

NSLS-II Transport Line Progress  

SciTech Connect

The National Synchrotron Light Source II (NSLS-II) is a state-of-the-art 3-GeV third generation light source currently under construction at Brookhaven National Laboratory. The NSLS-II injection system consists of a 200 MeV linac, a 3-GeV booster synchrotron and associated transfer lines. The first part of the Linac to Booster Transport (LBT) line has been installed for linac commissioning. This part includes all components necessary to commission the NSLS-II linac. The second part of this transport line is undergoing installation. Initial results of hardware commissioning will be discussed. The Booster to Storage Ring (BSR) transport line underwent a design review. The first part of the BSR transport line, consisting of all components necessary to commission the booster will be installed in 2012 for booster commissioning. We report on the final design of the BSR line along with the plan to commission the booster.

Fliller R. P.; Wahl, W.; Anderson, A.; Benish, B.; DeBoer, W.; Ganetis, G.; Heese, R.; Hseuh, H.-C.; Hu, J.-P.; Johanson, M.P.; Kosciuk, B.N.; Padrazo, D.; Roy, K.; Shaftan, T.; Singh, O.; Tuozzolo, J.; Wang, G.

2012-05-20T23:59:59.000Z

407

Electrical Effects of HVDC Transmission Lines  

Science Conference Proceedings (OSTI)

High-voltage direct current (HVDC) transmission lines are used to transmit large amounts of power over long distances. The Electric Power Research Institute (EPRI) and others have produced many publications over approximately the past three decades, expounding on this topic. Several HVDC transmission lines have been built and have been in operation around the world over that period, and recently, there has been increased interest in the advantages that HVDC transmission affords. HVDC lines, like high-vol...

2010-12-23T23:59:59.000Z

408

Evaluation of Emerging Line Inspection Technologies  

Science Conference Proceedings (OSTI)

This report describes field tests to examine various technologies available to establish conductor temperature during lidar field surveys of existing transmission lines. This is critical to assembling a proper line model to determine accurate sags and clearances. Lidar surveys are intended to demonstrate whether transmission lines have required clearances under full rating and specified environmental conditions.Typically, the technique used to establish conductor temperature at the ...

2012-11-28T23:59:59.000Z

409

Plains & Eastern Clean Line Project Proposal for New or Upgraded...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Plains & Eastern Clean Line Project Proposal for New or Upgraded Transmission Line Projects Under Section 1222 of the Energy Policy Act of 2005 Plains & Eastern Clean Line Project...

410

20120131 DOE Congestion Study Clean Line Comments 2012  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Line is an independent developer of four long-haul, high voltage direct current ("HVDC") transmission lines across the United States. Clean Line focuses exclusively on connecting...

411

Point-line spaces related to Jordan pairs.  

E-Print Network (OSTI)

??A point-line space is an abstract geometric object that consists of a set of points and a set of lines such that on each line (more)

Huggenberger, Simon

2009-01-01T23:59:59.000Z

412

Fermilab | Take Five for Goal Zero | Gloves | Lined Leather Gloves  

NLE Websites -- All DOE Office Websites (Extended Search)

Lined Leather Gloves Lined Leather Gloves Description Color Finish Uses FNAL Stock Number Fleece lined for warmth Keystone Thumb Shirred Elastic Back Color coded cuff indicates...

413

Emergency Management Lines of Inquiry, April 2008  

NLE Websites -- All DOE Office Websites (Extended Search)

3, 2008 EMERGENCY MANAGEMENT Inspection Criteria, Activities, and Lines of Inquiry Functional Area: Hazards Survey (HS) and Emergency Planning Hazards Assessment (EPHA) Inspection...

414

Northern Pass Transmission Line Project Environmental Impact...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Northern Pass Transmission Line Project Environmental Impact Statement: Announcement of Change in Public Meeting Location: Federal Register Notice Volume 78, No. 181 - September...

415

Transmission Line Security Monitor: Final Report  

SciTech Connect

The Electric Power Transmission Line Security Monitor System Operational Test is a project funded by the Technical Support Working Group (TSWG). TSWG operates under the Combating Terrorism Technical Support Office that functions under the Department of Defense. The Transmission Line Security Monitor System is based on technology developed by Idaho National Laboratory. The technology provides a means for real-time monitoring of physical threats and/or damage to electrical transmission line towers and conductors as well as providing operational parameters to transmission line operators to optimize transmission line operation. The end use is for monitoring long stretches of transmission lines that deliver electrical power from remote generating stations to cities and industry. These transmission lines are generally located in remote transmission line corridors where security infrastructure may not exist. Security and operational sensors in the sensor platform on the conductors take power from the transmission line and relay security and operational information to operations personnel hundreds of miles away without relying on existing infrastructure. Initiated on May 25, 2007, this project resulted in pre-production units tested in realistic operational environments during 2010. A technology licensee, Lindsey Manufacturing of Azusa California, is assisting in design, testing, and ultimately production. The platform was originally designed for a security monitoring mission, but it has been enhanced to include important operational features desired by electrical utilities.

John Svoboda

2011-04-01T23:59:59.000Z

416

Line Heat-Source Guarded Hot Plate  

Science Conference Proceedings (OSTI)

Line Heat-Source Guarded Hot Plate. Description: The 1-meter guarded hot-plate apparatus measures thermal conductivity of building insulation. ...

2012-03-06T23:59:59.000Z

417

Gila to North Gila Transmission Line Rebuild  

NLE Websites -- All DOE Office Websites (Extended Search)

Western proposes to rebuild and upgrade two, parallel, 4.8-mile-long transmission lines located between Gila and North Gila Substations and take land actions...

418

Estes-Flatiron Transmission Line Rebuild  

NLE Websites -- All DOE Office Websites (Extended Search)

which is a cooperating agency in the project. The proposed project would: Rebuild aging and deteriorating transmission lines Reduce the number of linear miles of transmission...

419

Emergency Management Lines of Inquiry, April 2008  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

23, 2008 EMERGENCY MANAGEMENT Inspection Criteria, Activities, and Lines of Inquiry Functional Area: Hazards Survey (HS) and Emergency Planning Hazards Assessment (EPHA) Inspection...

420

Effects of line shifts and the ion quadrupole contribution of spectral line asymmetries.  

SciTech Connect

Line asymmetries and the corresponding shift of spectral lines due to the electron penetration of the radiator orbitals and the ion quadrupole contribution become more significant with increasing principal quantum number and increasing electron density. The mean field static shift due to electron penetration of the orbitals gives rise to an overall shift of the line to lower energy and a significant asymmetry near line center, but does not generate much redhlue far wing asymmetry. The ion quadrupole contribution results in a small blue shift of the spectral line and a small change in asymmetry near line center, but it gives rise to a significant redhlue wing asymmetry in the far wings of the line. Experimental data fiom recent spherical implosion experiments on OMEGA shows evidence of the mean field static shift and may also show the effects of level interactions between the Ar Lyman -{gamma}, -{delta}, -{var_epsilon} lines and also the Ar He -{gamma}, -{delta} lines.

Gunderson, M. A. (Mark A.); Delamater, N. D. (Norman D.); Kilcrease, D. P. (David P.); Haynes, D. A. (Donald A.)

2002-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "overhead distribution lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

The Wigner Distribution  

E-Print Network (OSTI)

In contrast to classical physics, the language of quantum mechanics involves operators and wave functions (or, more generally, density operators). However, in 1932, Wigner formulated quantum mechanics in terms of a distribution function $W(q,p)$, the marginals of which yield the correct quantum probabilities for $q$ and $p$ separately \\cite{wigner}. Its usefulness stems from the fact that it provides a re-expression of quantum mechanics in terms of classical concepts so that quantum mechanical expectation values are now expressed as averages over phase-space distribution functions. In other words, statistical information is transferred from the density operator to a quasi-classical (distribution) function.

R. F. O'Connell

2010-09-22T23:59:59.000Z

422

DEVELOPMENT OF AN ON-LINE COAL WASHABILITY ANALYZER  

SciTech Connect

Washability analysis is the basis for nearly all coal preparation plant separations. Unfortunately, there are no on-line techniques for determining this most fundamental of all coal cleaning information. In light of recent successes at the University of Utah, it now appears possible to determine coal washability on-line through the use of x-ray computed tomography (CT) analysis. The successful development of such a device is critical to the establishment of process control and automated coal blending systems. In this regard, Virginia Tech, Terra Tek Inc., and several eastern coal companies have joined with the University of Utah and agreed to undertake the development of a x-ray CT-based on-line coal washability analyzer with financial assistance from DOE. The three-year project will cost $594,571, of which 33% ($194,575) will be cost-shared by the participants. The project involves development of appropriate software and extensive testing/evaluation of well-characterized coal samples from operating coal preparation plants. Each project participant brings special expertise to the project which is expected to create a new dimension in coal cleaning technology. Finally, it should be noted that the analyzer may prove to be a universal analyzer capable of providing not only washability analysis, but also particle size distribution analysis, ash analysis and perhaps pyritic sulfur analysis.

C.L. LIN; G.H. LUTTRELL; G.T. ADEL; JAN D. MILLER

1998-03-31T23:59:59.000Z

423

The Swinburne on-line education project  

Science Conference Proceedings (OSTI)

Many universities throughout the world are exploring the possibilities of on-line delivery of educational programs. These developments have the potential to significantly change the face of higher education as we know it today. In order to compete in ... Keywords: WWW, on-line education

C. J. Pilgrim; M. J. Creek

1998-08-01T23:59:59.000Z

424

Base line estimation using sparse nonlinear operators  

Science Conference Proceedings (OSTI)

Efficient nonlinear operators for base line estimation of high energy physics detector signals are introduced. Due to the high processing rate requirements the operators are simplified using sparse input sequences. The operators are a sparse order statistic ... Keywords: base line estimation, filter training, order statistic filter

Sami J. Inkinen; Yrj Neuvo

2002-05-01T23:59:59.000Z

425

Transmission line protection based on travelling waves  

Science Conference Proceedings (OSTI)

Major problem of tripping signal of a relay based on steady state component does not warranty faster tripping schemes for protection of extra high voltage transmission lines. Proposed work has made an attempt to find solution to the problem of fault ... Keywords: postfault voltage, relaying signals, surge impedence, transmission line protection, travelling waves

Anuradha S. Deshpande; Grishma S. Shah

2011-12-01T23:59:59.000Z

426

Requirements Uncertainty in a Software Product Line  

Science Conference Proceedings (OSTI)

A complex system's requirements almost always remain uncertain late into its software development. In gas turbine engine control systems at Rolls-Royce, for a traditional project (non-product line) typically 50% of requirements will change between Critical ... Keywords: Requirements, Uncertainty, Software Product Lines

Andy J. Nolan; Silvia Abrahao; Paul C. Clements; Andy Pickard

2011-08-01T23:59:59.000Z

427

Product Line Pricing in a Supply Chain  

Science Conference Proceedings (OSTI)

A vertically integrated channel would prefer to coordinate the pricing of its products. In this paper, we investigate drivers of product line pricing decisions in a bilateral monopoly where a manufacturer produces and sells two substitutable or complementary ... Keywords: complement, equilibrium, marketing, product line pricing, substitute, vertical strategic interaction

Lingxiu Dong; Chakravarthi Narasimhan; Kaijie Zhu

2009-10-01T23:59:59.000Z

428

results and benefits... The Bittern Line Carbon  

E-Print Network (OSTI)

results and benefits... The Bittern Line Carbon Neutral Stations Transport Regeneration Ltd. June 2008 c a s e s t u d yCRed carbon reduction Project Summary Our client, Transport Regeneration Ltd., aims to make nine stations on the Bittern Line between Norwich and Sheringham carbon neutral

Everest, Graham R

429

Accelerating line extraction based on GPU  

Science Conference Proceedings (OSTI)

A new line extraction accelerating algorithm based upon graphics processing units (GPUs) is presented. Several techniques are proposed to optimize the GPU computation. Among those improvements, the most important one is the use of "seed pixels", which ... Keywords: GPU, line extraction, parallel processing, phase-based grouping

Li Yu; Xiao'an Tang; Bo Tang

2011-12-01T23:59:59.000Z

430

Coal Distribution Database, 2008  

U.S. Energy Information Administration (EIA) Indexed Site

4Q 2009 4Q 2009 April 2010 Quarterly Coal Distribution Table Format and Data Sources 4Q 2009 In keeping with EIA's efforts to increase the timeliness of its reports, this Quarterly Coal Distribution Report is a preliminary report, based on the most current data available from EIA's various monthly, quarterly and annual surveys of the coal industry and electric power generation industry. The final report will rely on the receipt of annual data to replace the imputed monthly data for smaller electric generation plants that are excluded from the monthly filing requirement, and final data for all other respondents. The Coal Distribution Report traces coal from the origin State to the destination State by transportation mode. The data sources beginning with the 2008 Coal Distribution Report

431

Electricity Distribution System Workshop  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Grid Tech Team Grid Tech Team Discussion Summary Electricity Distribution System Workshop 2 Table of Contents INTRODUCTION ............................................................................................................................................. 3 EXECUTIVE SUMMARY .................................................................................................................................. 4 Process ...................................................................................................................................................... 4 Common Themes ...................................................................................................................................... 5 Discussion Topic Tables ............................................................................................................................. 8

432

Ductless Hydronic Distribution  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

DUCTLESS HYDRONIC DUCTLESS HYDRONIC DISTRIBUTION Alliance for Residential Building Innovation David Springer, Davis Energy Group Context  Target: Builders of high performance new homes & deep retrofits  Why is this technology key to meeting performance goals of future homes?  Distribution Efficiency * Distribution efficiency for well insulated, tight ducts in attics ≈ 85% * Duct energy losses drives placement of ducts inside conditioned space, which adds cost and interferes with structure and architecture * Ductless hydronic systems can approach 100% distribution efficiency; piping needs little space  Delivery Energy * Fans: 0.58 W/cfm or 9 (heating) to 27 (cooling) W/kBtuh * Pumps: 8 W/gpm, or 0.8 W/kBtuh Context  Sizing * Conventional systems tend to be too large for low load homes

433

Financing Distributed Generation  

DOE Green Energy (OSTI)

This paper introduces the engineer who is undertaking distributed generation projects to a wide range of financing options. Distributed generation systems (such as internal combustion engines, small gas turbines, fuel cells and photovoltaics) all require an initial investment, which is recovered over time through revenues or savings. An understanding of the cost of capital and financing structures helps the engineer develop realistic expectations and not be offended by the common requirements of financing organizations. This paper discusses several mechanisms for financing distributed generation projects: appropriations; debt (commercial bank loan); mortgage; home equity loan; limited partnership; vendor financing; general obligation bond; revenue bond; lease; Energy Savings Performance Contract; utility programs; chauffage (end-use purchase); and grants. The paper also discusses financial strategies for businesses focusing on distributed generation: venture capital; informal investors (''business angels''); bank and debt financing; and the stock market.

Walker, A.

2001-06-29T23:59:59.000Z

434

Multimodal Raindrop Size Distributions  

Science Conference Proceedings (OSTI)

The raindrop size distributions (DSDs) observed over a short span usually have an erratic shape, with several relative maxima. This multimodal structure is studied from disdrometer data acquired in tropical and midlatitude areas. It is shown that ...

Henri Sauvageot; Manlandon Koffi

2000-08-01T23:59:59.000Z

435

A distributed Hash table  

E-Print Network (OSTI)

DHash is a new system that harnesses the storage and network resources of computers distributed across the Internet by providing a wide-area storage service, DHash. DHash frees applications from re-implementing mechanisms ...

Dabek, Frank (Frank Edward), 1977-

2006-01-01T23:59:59.000Z

436

CONSULTANT REPORT DISTRIBUTED GENERATION  

E-Print Network (OSTI)

, renewables, interconnection, integration, electricity, distribution, transmission, costs. Please use Coldwell Project Manager Ivin Rhyne Office Manager Electricity Analysis Office Sylvia Bender Deputy Director Electricity Supply Analysis Division Robert P. Oglesby Executive Director DISCLAIMER

437

Parallel and Distributed Haskells  

Science Conference Proceedings (OSTI)

Parallel and distributed languages specify computations on multiple processors and have a computation language to describe the algorithm, i.e. what to compute, and a coordination language to describe how to organise the computations across ...

P. W. Trinder; H.-W. Loidl; R. F. Pointon

2002-07-01T23:59:59.000Z

438

Financing Distributed Generation  

SciTech Connect

This paper introduces the engineer who is undertaking distributed generation projects to a wide range of financing options. Distributed generation systems (such as internal combustion engines, small gas turbines, fuel cells and photovoltaics) all require an initial investment, which is recovered over time through revenues or savings. An understanding of the cost of capital and financing structures helps the engineer develop realistic expectations and not be offended by the common requirements of financing organizations. This paper discusses several mechanisms for financing distributed generation projects: appropriations; debt (commercial bank loan); mortgage; home equity loan; limited partnership; vendor financing; general obligation bond; revenue bond; lease; Energy Savings Performance Contract; utility programs; chauffage (end-use purchase); and grants. The paper also discusses financial strategies for businesses focusing on distributed generation: venture capital; informal investors (''business angels''); bank and debt financing; and the stock market.

Walker, A.

2001-06-29T23:59:59.000Z

439

Distributed service composition  

E-Print Network (OSTI)

In this paper we explore the use of action systems for distributed service composition. Distributed systems can be composed out of a basic computation and a set of services. Even though this way of designing a system out of components helps in managing the derivation task, formal description techniques are needed due to the complexity of distributed systems. We propose a method where services, or features as they are often called, are speci ed in isolation by the service provider. The services when available are used by clients in a distributed manner. Reasoning about the services and their interactions with each other and with the basic computation of the clients is carried out within the re nement calculus. To exemplify the proposed methodology we study feature composition and feature interaction in telecommunications software.

Joost N. Kok; Kaisa Sere

1999-01-01T23:59:59.000Z

440

DistFlow ODE: Modeling, analyzing and controlling long distribution feeder  

E-Print Network (OSTI)

We consider a linear feeder connecting multiple distributed loads and generators to the sub-station. Voltage is controlled directly at the sub-station, however, voltage down the line shifts up or down, in particular depending ...

Wang, Danhua

Note: This page contains sample records for the topic "overhead distribution lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Formal verification of hierarchically distributed agent based protection scheme in smart grid  

Science Conference Proceedings (OSTI)

In recent studies, hierarchically distributed non-intrusive agent aided transmission line distance relaying protection scheme has been proposed. This scheme is meant to provide the distance relays with situational awareness and improve their robustness ...

Shravan Garlapati; Sandeep K. Shukla

2012-07-01T23:59:59.000Z

442

Underground Distribution Sensors  

Science Conference Proceedings (OSTI)

Rising costs of new infrastructure, increasing demand, and a declining number of available workers will drive utilities to operate as efficiently as possible. The practice of overbuilding infrastructure to improve or maintain reliability will be viewed as cost-inefficient. Utilities will be forced to operate distribution systems more dynamically and efficiently. Distribution sensors will help provide the needed information to utilities to achieve the goal of dynamic efficiency. The Underground Distributi...

2009-03-31T23:59:59.000Z

443

Equilibrium Distributions and Superconductivity  

E-Print Network (OSTI)

In this article two models for charges distributions are discussed. On the basis of our consideration we put different points of view for stationary state. We prove that only finite energy model for charges' distribution and well-known variation principle explain some well-known experimental results. A new model for superconductivity was suggested, too. In frame of that model some characteristic experimental results for superconductors is possible to explain.

Ashot Vagharshakyan

2011-06-07T23:59:59.000Z

444

Writer-independent off-line signature verification using surroundedness feature  

Science Conference Proceedings (OSTI)

The paper presents a novel set of features based on surroundedness property of a signature (image in binary form) for off-line signature verification. The proposed feature set describes the shape of a signature in terms of spatial distribution of black ... Keywords: Feature selection, Shape, Signature verification, Surroundedness, Texture

Rajesh Kumar; J. D. Sharma; Bhabatosh Chanda

2012-02-01T23:59:59.000Z

445

The He ii Fowler lines and the O iii and N iii Bowen fluorescence lines in the symbiotic nova RR Tel  

E-Print Network (OSTI)

Received.....; accepted Aims. A detailed study of the Oiii and Niii Bowen lines in the spectrum of RR Tel Methods. Absolute intensities for the Heii, Oiii, and Niii emission lines have been obtained from STIS, UVES, FEROS and IUE data, after re-calibration of UVES and FEROS on the STIS scale. Results. A new measure of reddening (E(B?V)?0.00) has been obtained from the comparison between the observed and the theoretical intensity decrement for 20 emission lines of the Heii Fowler (n?3) series. This value has been confirmed by the STIS and IUE continuum distribution, and by the value of nH from the damped profile of the IS H Ly-? line. We have obtained very accurate measurements for about thirty Bowen lines of Oiii and a precise determination of the efficiency in the O1 and O3 excitation channels (18 % and 0.7 %, respectively). The relative Oiii intensities are in good agreement with the predictions by Froese Fischer (1994). A detailed study of the decays from all levels involved in the Bowen mechanism has lead to the detection of two new Oiii Bowen lines near?2190. High resolution IUE data have shown a nearly linear decline with time, from 1978 to 1995, in the efficiency of the O1 and O3 processes, with a steeper slope for the O3 channel. A detailed study of the Niii? 4640 lines and of their excitation mechanism has shown that, recombination and continuum fluorescence being ruled out, line fluorescence remains the only viable mechanism to pump the 3d 2 D5/2 and 3d 2 D3/2 levels of Niii. We point out the important role of multiple scattering in the resonance lines of Oiii

P. Selvelli; J. Danziger; P. Bonifacio; Cifist Marie; Curie Excellence Team

2006-01-01T23:59:59.000Z

446

A Fast Line-by-Line Method for Atmospheric Absorption Computations: The Automatized Atmospheric Absorption Atlas  

Science Conference Proceedings (OSTI)

A computationally fast line-by-line method for the determination of atmospheric absorption is described. This method is based on the creation of an Automatized Atmospheric Absorption Atlas (4A) covering all possible plausible atmospheric ...

N. A. Scott; A. Chedin

1981-07-01T23:59:59.000Z

447

Distribution et association des inversions chromosomiques dans trois populations naturelles  

E-Print Network (OSTI)

, one on each of the major autosome arms, are cosmopolitan. The Tunisian popu- lation shows the greatest distribution of cosmopolitan inversions between individuals of the French population is observed in the Tunisian lines. Linkage disequilibrium exists between pair of cosmopolitan inversions of the #12;second

Recanati, Catherine

448

Distributed monitoring and control of office buildings by embedded agents  

Science Conference Proceedings (OSTI)

We describe a decentralized system consisting of a collection of software agents that monitor and control an office building. It uses the existing power lines for communication between the agents and the electrical devices of the building, such as sensors ... Keywords: Distributed control, Intelligent buildings, Software agents

Paul Davidsson; Magnus Boman

2005-05-01T23:59:59.000Z

449

The Local Helium Compound Transfer Lines for the Large Hadron Collider Cryogenic System  

E-Print Network (OSTI)

The cryogenic system for the Large Hadron Collider (LHC) under construction at CERN will include twelve new local helium transfer lines distributed among five LHC points in underground caverns. These lines, being manufactured and installed by industry, will connect the cold boxes of the 4.5-K refrigerators and the 1.8-K refrigeration units to the cryogenic interconnection boxes. The lines have a maximum of 30-m length and may possess either small or large re-distribution units to allow connection to the interface ports. Due to space restrictions the lines may have complex routings and require several elbowed sections. The lines consist of a vacuum jacket, a thermal shield and either three or four helium process pipes. Specific internal and external supporting and compensation systems were designed for each line to allow for thermal contraction of the process pipes (or vacuum jacket, in case of a break in the insulation vacuum) and to minimise the forces applied to the interface equipment. Whenever possible, f...

Parente, C; Munday, A; Wiggins, P

2006-01-01T23:59:59.000Z

450

Application Filling Requirements for Transmission Line and Substation...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Application Filling Requirements for Transmission Line and Substation Construction Projects (Wisconsin) Application Filling Requirements for Transmission Line and Substation...

451

Coupled Lines/Multiport Measurement/Orthogonal Calibration  

Science Conference Proceedings (OSTI)

... understanding of lossy multiconductor transmission lines and modal cross powers. These theoretical developments in coupled line theory have led ...

2012-05-25T23:59:59.000Z

452

Kangley - Echo Lake Transmission Line Project, Final Environmental...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Selleck Kangley North Bend Cedar Falls Existing Transmission Lines Proposed Transmission Line Alternatives Under Consideration BPA Substation Alternative * * * * * * ...

453

Fault-Location Application for Improving Distribution System Maintenance: Hydro-Quebec's Experiences  

Science Conference Proceedings (OSTI)

Hydro-Qubec has been conducting research since 2001 in the area of distribution line predictive maintenance based on the use of power quality measurements and the localization of non-permanent faults. This concept, which forms the basis of the development of an intelligent electrical line maintenance application known as MILE (French for "Maintenance Intelligente de Lignes lectriques"), originates from a generally held idea whereby the precursor signs of distribution system equipment failure can be detec...

2011-12-23T23:59:59.000Z

454

Nonorthogonal decoy-state Quantum Key Distribution  

E-Print Network (OSTI)

In practical quantum key distribution (QKD), weak coherent states as the photon sources have a limit in secure key rate and transmission distance because of the existence of multiphoton pulses and heavy loss in transmission line. Decoy states method and nonorthogonal encoding protocol are two important weapons to combat these effects. Here, we combine these two methods and propose a efficient method that can substantially improve the performance of QKD. We find a 79 km increase in transmission distance over the prior record using decoy states method.

Li, J B; Li, Jing-Bo; Fang, Xi-Ming

2005-01-01T23:59:59.000Z

455

UPDATE TO PLAINS & EASTERN CLEAN LINE PROPOSAL FOR NEW OR UPGRADED TRANSMISSION LINE PROJECTS  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

UPDATE TO PLAINS & EASTERN CLEAN LINE PROPOSAL UPDATE TO PLAINS & EASTERN CLEAN LINE PROPOSAL FOR NEW OR UPGRADED TRANSMISSION LINE PROJECTS UNDER SECTION 1222 OF THE ENERGY POLICY ACT OF 2005 AUGUST 2011 Table of Contents 1. Executive Summary .......................................................................................................... 1 2. Project Update .................................................................................................................. 2 a. Jobs and Economic Development ........................................................................................................... 5 b. Interconnection Studies ............................................................................................................................. 6 c. Routing and Public Outreach ................................................................................................................... 7

456

LineScout technology: from inspection to robotic maintenance on live transmission power lines  

Science Conference Proceedings (OSTI)

Power line inspection and maintenance practices are evolving as changing market regulations, significantly increased line loading and system availability requirements put pressure on grid owners to innovate. Robotics is thus making its debut in that ... Keywords: field robotics, mechanical design, power line inspection robot, telerobotics

Nicolas Pouliot; Serge Montambault

2009-05-01T23:59:59.000Z

457

Aalborg Universitet A Distributed Control Strategy for Coordination of an Autonomous LVDC Microgrid  

E-Print Network (OSTI)

Aalborg Universitet A Distributed Control Strategy for Coordination of an Autonomous LVDC Microgrid Strategy for Coordination of an Autonomous LVDC Microgrid Based on Power-Line Signalling. I E E E Control Strategy for Coordination of an Autonomous LVDC Microgrid Based on Power-Line Signalling Tomislav

Vasquez, Juan Carlos

458

Advanced Distributed Generation LLC | Open Energy Information  

Open Energy Info (EERE)

LLC LLC Jump to: navigation, search Name Advanced Distributed Generation LLC Address 200 West Scott Park Drive, MS # 410 Place Toledo, Ohio Zip 43607 Sector Solar Product Agriculture; Consulting; Installation; Maintenance and repair; Retail product sales and distribution Phone number 419-725-3401 Website http://www.advanced-dg.com Coordinates 41.6472294°, -83.5975882° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.6472294,"lon":-83.5975882,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

459

Productivity Improvement of a Manual Assembly Line  

E-Print Network (OSTI)

The current project addresses the productivity improvement of a manual assembly line by making use of operations analysis in the framework of Lean production. A methodology is proposed that helps to improve the productivity of any production process. The methodology consists of selecting a product or product family to be studied followed by current process study. Once the existing process is documented, all the assembly tasks involved must be timed using time study techniques. Operations analysis enables the reduction of non-productive tasks and results in a set of standardized work elements along with the set of standard procedures for performing the operations. Assembly line balancing along with the associated operations analysis assists in constructing or re-configuring an assembly system, which is the key step in improving the overall performance of an assembly line. Following this approach, two manual assembly line configurations (single stage parallel line and five-stage serial line) are constructed for a case study. The results show that by changing over to the single stage assembly line configuration the operator productivity is doubled when compared to the existing assembly method.

Yerasi, Pranavi

2011-08-01T23:59:59.000Z

460

A Multi Agent-Based Framework for Simulating Household PHEV Distribution and Electric Distribution Network Impact  

DOE Green Energy (OSTI)

The variation of household attributes such as income, travel distance, age, household member, and education for different residential areas may generate different market penetration rates for plug-in hybrid electric vehicle (PHEV). Residential areas with higher PHEV ownership could increase peak electric demand locally and require utilities to upgrade the electric distribution infrastructure even though the capacity of the regional power grid is under-utilized. Estimating the future PHEV ownership distribution at the residential household level can help us understand the impact of PHEV fleet on power line congestion, transformer overload and other unforeseen problems at the local residential distribution network level. It can also help utilities manage the timing of recharging demand to maximize load factors and utilization of existing distribution resources. This paper presents a multi agent-based simulation framework for 1) modeling spatial distribution of PHEV ownership at local residential household level, 2) discovering PHEV hot zones where PHEV ownership may quickly increase in the near future, and 3) estimating the impacts of the increasing PHEV ownership on the local electric distribution network with different charging strategies. In this paper, we use Knox County, TN as a case study to show the simulation results of the agent-based model (ABM) framework. However, the framework can be easily applied to other local areas in the US.

Cui, Xiaohui [ORNL; Liu, Cheng [ORNL; Kim, Hoe Kyoung [ORNL; Kao, Shih-Chieh [ORNL; Tuttle, Mark A [ORNL; Bhaduri, Budhendra L [ORNL

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "overhead distribution lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Parton Distributions in Hadrons  

SciTech Connect

We use the statistical model of Zhang et al. to calculate parton distributions in hadrons. The model does reasonably well in predicting the distributions of partons in the proton, including the (d-bar - u-bar) excess in the proton sea. We extend the model to calculate quark and gluon distributions in the pion, kaon, and the pentaquark. The hadrons are described in terms of quark and gluon Fock states. Detailed balance between each pair of states is assumed, from which the coefficients of the Fock state expansion are determined. The parton distribution functions are found in the hadron rest frame from a Monte Carlo calculation. The results are evolved to appropriate QCD scales for comparison with experiment. Despite its simplicity, the model is in good agreement with the experimentally measured distributions of partons in the pion and kaon. This project has included significant participation by undergraduates at Seattle University, made possible by support from the Research in Undergraduate Institutions Program of the National Science Foundation.

Alberg, Mary [Department of Physics, Seattle University, Seattle, WA 98122 (United States); Department of Physics, University of Washington, Seattle, WA 98195 (United States); Henley, Ernest M. [Department of Physics, University of Washington, Seattle, WA 98195 (United States); Institute for Nuclear Theory, University of Washington, Seattle, WA 98195 (United States)

2006-07-11T23:59:59.000Z

462

Limitations on the obligation to provide access to electric transmission and distribution lines  

Science Conference Proceedings (OSTI)

The authors examine the limited availability of wheeling under the Federal Power Act, as amended by the Public Utility Regulatory Policies Act. They demonstrate that the adoption of the essential facilities doctrine to determine possession of monopoly power may be a positive step toward more realistic analysis of refusals to deal by regulated companies. Without objective cost standards, however, to determine whether a facility is essential, this step may be counterproductive or even meaningless. In the context of requests to wheel, they identify the specific competition to be protected and the proper standards for determining whether a facility is essential. The obligation to wheel remains an uncertainty which the courts will resolve on a case-by-case basis. The scope of legitimate business conduct, however, can be clarified by the courts and, potentially, could be resolved to limit further a utility's obligation to wheel. 146 references.

Norton, F.L. IV; Early, M.B.

1984-01-01T23:59:59.000Z

463

Distribution System Planning with Distributed Generation: Optimal versus Heuristic Approach.  

E-Print Network (OSTI)

??Distribution system design and planning is facing a major change in paradigm because of deregulation of the power industry and with rapid penetration of distributed (more)

Bin Humayd, Abdullah

2011-01-01T23:59:59.000Z

464

Coal Distribution Database, 2006  

U.S. Energy Information Administration (EIA) Indexed Site

7 7 December 2008 2007 Changes in Coal Distribution Table Format and Data Sources The changes in the coal distribution data sources made in 2006 are carried over to the 2007 tables. As in 2006, EIA used data from the EIA-3 survey to distribute synfuel to the electric generation sector on a state level, aggregated with all of the other coal (such as bituminous, subbituminous, and lignite coal) sent to electric generating plants. EIA supplemented the EIA-3 data with previously collected information to determine the mode of transportation from the synfuel plant to the electric generating consumer, which was not reported on the EIA-3A survey form. Although not contained in the EIA-6A master file, this information has been documented in an ancillary spreadsheet in the EIA

465

Coal Distribution Database, 2008  

U.S. Energy Information Administration (EIA) Indexed Site

Origin State, Origin State, Consumer, Destination and Method of Transportation 3Q 2009 February 2010 Quarterly Coal Distribution Table Format and Data Sources 3Q 2009 In keeping with EIA's efforts to increase the timeliness of its reports, this Quarterly Coal Distribution Report is a preliminary report, based on the most current data available from EIA's various monthly, quarterly and annual surveys of the coal industry and electric power generation industry. The final report will rely on the receipt of annual data to replace the imputed monthly data for smaller electric generation plants that are excluded from the monthly filing requirement, and final data for all other respondents. The Coal Distribution Report traces coal from the origin State to the destination State by

466

Computing Frontier: Distributed Computing  

NLE Websites -- All DOE Office Websites (Extended Search)

Computing Computing Frontier: Distributed Computing and Facility Infrastructures Conveners: Kenneth Bloom 1 , Richard Gerber 2 1 Department of Physics and Astronomy, University of Nebraska-Lincoln 2 National Energy Research Scientific Computing Center (NERSC), Lawrence Berkeley National Laboratory 1.1 Introduction The field of particle physics has become increasingly reliant on large-scale computing resources to address the challenges of analyzing large datasets, completing specialized computations and simulations, and allowing for wide-spread participation of large groups of researchers. For a variety of reasons, these resources have become more distributed over a large geographic area, and some resources are highly specialized computing machines. In this report for the Snowmass Computing Frontier Study, we consider several questions about distributed computing

467

Distributed Wind Market Applications  

NLE Websites -- All DOE Office Websites (Extended Search)

Distributed Wind Market Distributed Wind Market Applications T. Forsyth and I. Baring-Gould Technical Report NREL/TP-500-39851 November 2007 NREL is operated by Midwest Research Institute ● Battelle Contract No. DE-AC36-99-GO10337 National Renewable Energy Laboratory 1617 Cole Boulevard, Golden, Colorado 80401-3393 303-275-3000 * www.nrel.gov Operated for the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy by Midwest Research Institute * Battelle Contract No. DE-AC36-99-GO10337 Technical Report NREL/TP-500-39851 November 2007 Distributed Wind Market Applications T. Forsyth and I. Baring-Gould Prepared under Task No. WER6.7502 NOTICE This report was prepared as an account of work sponsored by an agency of the United States government.

468

Hydrogen Pathway Cost Distributions  

NLE Websites -- All DOE Office Websites (Extended Search)

Pathway Cost Distributions Pathway Cost Distributions Jim Uihlein Fuel Pathways Integration Tech Team January 25, 2006 2 Outline * Pathway-Independent Cost Goal * Cost Distribution Objective * Overview * H2A Influence * Approach * Implementation * Results * Discussion Process * Summary 3 Hydrogen R&D Cost Goal * Goal is pathway independent * Developed through a well defined, transparent process * Consumer fueling costs are equivalent or less on a cents per mile basis * Evolved gasoline ICE and gasoline-electric hybrids are benchmarks * R&D guidance provided in two forms * Evolved gasoline ICE defines a threshold hydrogen cost used to screen or eliminate options which can't show ability to meet target * Gasoline-electric hybrid defines a lower hydrogen cost used to prioritize projects for resource allocation

469

Coal Distribution Database, 2008  

U.S. Energy Information Administration (EIA) Indexed Site

Destination State, Destination State, Consumer, Destination and Method of Transportation 3Q 2009 February 2010 Quarterly Coal Distribution Table Format and Data Sources 3Q 2009 In keeping with EIA's efforts to increase the timeliness of its reports, this Quarterly Coal Distribution Report is a preliminary report, based on the most current data available from EIA's various monthly, quarterly and annual surveys of the coal industry and electric power generation industry. The final report will rely on the receipt of annual data to replace the imputed monthly data for smaller electric generation plants that are excluded from the monthly filing requirement, and final data for all other respondents. The Coal Distribution Report traces coal from the origin State to the destination State by

470

Distributed data transmitter  

DOE Patents (OSTI)

A distributed data transmitter (DTXR) which is an adaptive data communication microwave transmitter having a distributable architecture of modular components, and which incorporates both digital and microwave technology to provide substantial improvements in physical and operational flexibility. The DTXR has application in, for example, remote data acquisition involving the transmission of telemetry data across a wireless link, wherein the DTXR is integrated into and utilizes available space within a system (e.g., a flight vehicle). In a preferred embodiment, the DTXR broadly comprises a plurality of input interfaces; a data modulator; a power amplifier; and a power converter, all of which are modularly separate and distinct so as to be substantially independently physically distributable and positionable throughout the system wherever sufficient space is available.

Brown, Kenneth Dewayne (Grain Valley, MO); Dunson, David (Kansas City, MO)

2006-08-08T23:59:59.000Z

471

Distributed data transmitter  

DOE Patents (OSTI)

A distributed data transmitter (DTXR) which is an adaptive data communication microwave transmitter having a distributable architecture of modular components, and which incorporates both digital and microwave technology to provide substantial improvements in physical and operational flexibility. The DTXR has application in, for example, remote data acquisition involving the transmission of telemetry data across a wireless link, wherein the DTXR is integrated into and utilizes available space within a system (e.g., a flight vehicle). In a preferred embodiment, the DTXR broadly comprises a plurality of input interfaces; a data modulator; a power amplifier; and a power converter, all of which are modularly separate and distinct so as to be substantially independently physically distributable and positionable throughout the system wherever sufficient space is available.

Brown, Kenneth Dewayne (Grain Valley, MO); Dunson, David (Kansas City, MO)

2008-06-03T23:59:59.000Z

472

Distribution of Mutual Information  

E-Print Network (OSTI)

In the analysis of time series from nonlinear sources, mutual information (MI) is used as a nonlinear statistical criterion for the selection of an appropriate time delay in time delay reconstruction of the state space. MI is a statistic over the sets of sequences associated with the dynamical source, and we examine here the distribution of MI, thus going beyond the familiar analysis of its average alone. We give for the first time the distribution of MI for a standard, classical communications channel with Gaussian, additive white noise. For time series analysis of a dynamical system, we show how to determine the distribution of MI and discuss the implications for the use of average mutual information (AMI) in selecting time delays in phase space reconstruction.

Henry D. I. Abarbanel; Naoki Masuda; M. I. Rabinovich; Evren Tumer

2000-11-09T23:59:59.000Z

473

Distributed Wind Market Applications  

SciTech Connect

Distributed wind energy systems provide clean, renewable power for on-site use and help relieve pressure on the power grid while providing jobs and contributing to energy security for homes, farms, schools, factories, private and public facilities, distribution utilities, and remote locations. America pioneered small wind technology in the 1920s, and it is the only renewable energy industry segment that the United States still dominates in technology, manufacturing, and world market share. The series of analyses covered by this report were conducted to assess some of the most likely ways that advanced wind turbines could be utilized apart from large, central station power systems. Each chapter represents a final report on specific market segments written by leading experts in this field. As such, this document does not speak with one voice but rather a compendium of different perspectives, which are documented from a variety of people in the U.S. distributed wind field.

Forsyth, T.; Baring-Gould, I.

2007-11-01T23:59:59.000Z

474

distribution | OpenEI  

Open Energy Info (EERE)

distribution distribution Dataset Summary Description This dataset represents a historical repository of all the numerical data from the smartgrid.gov website condensed into spreadsheets to enable analysis of the data. Below are a couple of things worth noting: Source Smartgrid.gov Date Released March 04th, 2013 (11 months ago) Date Updated March 04th, 2013 (11 months ago) Keywords AMI costs distribution smart grid transmission Data application/vnd.openxmlformats-officedocument.spreadsheetml.sheet icon SmartGrid.gov Quarterly Data Summary 4Q12 (xlsx, 112.1 KiB) application/vnd.openxmlformats-officedocument.spreadsheetml.sheet icon SmartGrid.gov Quarterly Data Summary 3Q12 (xlsx, 107.9 KiB) application/vnd.openxmlformats-officedocument.spreadsheetml.sheet icon SmartGrid.gov Quarterly Data Summary 2Q12 (xlsx, 111.9 KiB)

475

Distributed Wind Policy Comparison Tool | Open Energy Information  

Open Energy Info (EERE)

Distributed Wind Policy Comparison Tool Distributed Wind Policy Comparison Tool Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Distributed Wind Policy Comparison Tool Focus Area: Renewable Energy Topics: Policy Impacts Website: www.eformativeoptions.com/distributed-wind-policy-comparison-tool-news Equivalent URI: cleanenergysolutions.org/content/distributed-wind-policy-comparison-to Language: English Policies: "Deployment Programs,Financial Incentives,Regulations" is not in the list of possible values (Deployment Programs, Financial Incentives, Regulations) for this property. DeploymentPrograms: Demonstration & Implementation Regulations: Feed-in Tariffs This Web-based tool allows users to identify policies that have had the most (and least) impact on improving the bottom line economics of wind

476

Distribution System Research Priorities  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Mark McGranaghan Mark McGranaghan EPRI ELECTRICITY DISTRIBUTION SYSTEM WORKSHOP Crystal City, VA September 24, 2012 Distribution System Research Priorities 2 © 2012 Electric Power Research Institute, Inc. All rights reserved. The Power System Roadmaps start with a Vision Future Power System will require new technologies, infrastructure, and control systems 3 © 2012 Electric Power Research Institute, Inc. All rights reserved. R&D Roadmaps - Coordination is Critical Roadmaps are living documents 4 © 2012 Electric Power Research Institute, Inc. All rights reserved. Developing the next generation grid * Industry needs new technologies, communication protocols, and information management methods - More variable generation sources and controllable loads - Aging infrastructure

477

A wlan scheduling algorithm to reduce the energy consumption of a distributed speech recognition system  

E-Print Network (OSTI)

In distributed speech recognition, speech features are computed on a mobile device, compressed, and sent to a server that performs the computationally intensive search for the most likely word sequence. Much of the current research in distributed speech recognition has been in the area of feature compression and communication robustness over wireless links, including error correction and concealment techniques. However, another challenge in designing a distributed speech recognition system is minimizing the energy consumption on the mobile device. We consider quality-of-service tradeoffs including compression ratio and overall system latency. Our measurements verify that for high speed wireless interfaces such as 802.11b, small changes in compression rates have little effect on system level energy consumption. However, for wireless networks with lower power/bit-rate ratios such as Bluetooth, the choice of bit-rate and compression ratio becomes more important. We present a wireless LAN scheduling algorithm to minimize the energy consumption of a distributed speech recognition front-end on a mobile device. By powering down the 802.11b interface when not in use, we are able to reduce the energy consumption by up to a factor of 5 in heavy traffic conditions. Increasing the total amount of time spent in the off state to almost one second will allow the system to save power regardless of traffic conditions. We compare the results of this power saving algorithm to the low-power mechanisms of Bluetooth. The lower overhead of Bluetooth allows for greater energy savings with a much lower delay of approximately 300ms. 1.

Brian Delaney; Nikil Jayant

2003-01-01T23:59:59.000Z

478

Definition: Tie Line Bias | Open Energy Information  

Open Energy Info (EERE)

Line Bias Line Bias Jump to: navigation, search Dictionary.png Tie Line Bias A mode of Automatic Generation Control that allows the Balancing Authority to maintain its Interchange Schedule and respond to Interconnection frequency error.[1] Related Terms Balancing Authority, Automatic Generation Control, frequency error, smart grid References ↑ Glossary of Terms Used in Reliability Standards An inl LikeLike UnlikeLike You like this.Sign Up to see what your friends like. ine Glossary Definition Retrieved from "http://en.openei.org/w/index.php?title=Definition:Tie_Line_Bias&oldid=502569" Categories: Definitions ISGAN Definitions What links here Related changes Special pages Printable version Permanent link Browse properties 429 Throttled (bot load) Error 429 Throttled (bot load)

479

Definition: Tie Line | Open Energy Information  

Open Energy Info (EERE)

Authority Area, smart grid References Glossary of Terms Used in Reliability Standards An in LikeLike UnlikeLike You like this.Sign Up to see what your friends like. line...

480

Mesoscale Structure of an Oklahoma Squall Line  

Science Conference Proceedings (OSTI)

A squall line, which passed through the National Severe Storms Laboratory measonetwork in Oklahoma on 26 April 1969, is analyzed to determine the mesoscale structure. The analyses are based on data from 23 rawinsonde ascents, 29 automatically ...

Judith Stokes Bradberry

1981-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "overhead distribution lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

Corona losses in HVdc bipolar lines  

SciTech Connect

The problem related to the prediction of corona losses in HVdc bipolar lines has been solved, in the past, by means of semi-empirical monomial formulae. However, the proposed formulae that are simpler to use do not always give adequate calculation precision, while the formulae that provide the closest results require implicit functions of different complexity, which are difficult to apply; moreover, it is not possible to understand clearly what influence the variations of the different line parameters have on the losses themselves. The new monomial semi-empirical relationship, proposed to predict the corona losses in HVdc bipolar lines, is very simple to use; it highlights the dependence of power losses due to the corona effect by the different line parameters. The formula has been developed by elaborating a considerable amount of available experimental data.

Corbellini, U.; Pelacchi, P. [Univ. of Pisa (Italy). Dept. of Electric Systems and Automation

1996-07-01T23:59:59.000Z

482

Clean Lines: Strategies for Reducing Your Environmental ...  

Science Conference Proceedings (OSTI)

... Flow restrictors to prevent the flow in a water-supply pipe from exceeding a ... On manual lines, racks can be hung on bars over process baths to allow ...

2013-08-16T23:59:59.000Z

483

Momentum Transport by a Line of Cumulonimbus  

Science Conference Proceedings (OSTI)

The vertical transport of horizontal momentum normal to a line of cumulonimbus observed during GATE on 14 September 1974 is against the vertical momentum gradient, contrary to the predictions of mixing-length theory. Data from repeated aircraft ...

Margaret A. LeMone

1983-07-01T23:59:59.000Z

484

Electrical Characterization of Textile Transmission Lines  

E-Print Network (OSTI)

In this paper, electrical characterization and modeling of conductive textiles are presented. A dedicated measurement setup has been developed to allow reliable connection of the textile samples with the equipment cables. Geometrical fabric structures and fabrication tolerances as well as high frequency properties up to 6 GHz for four types of textiles have been determined. Transmission lines with controlled characteristic impedance have been realized enabling the characterization of typical line attenuation factors. This work shows that textile transmission lines can be used for frequencies up to 1.2 GHz and 120 MHz with the maximal lengths of 10 and 100 cm, respectively. Index Terms---Attenuation constants, characteristic impedance, conductive textiles, transmission lines, wearable computing.

Didier Cottet; Janusz Grzyb; Student Member; Student Member; Tnde Kirstein; Gerhard Trster; Senior Member

2003-01-01T23:59:59.000Z

485

On the Generation of African Squall Lines  

Science Conference Proceedings (OSTI)

Squall lines (SLs) form an important component of the meteorology of northern Africa, and in particular, contribute substantially to rainfall totals. Their generation requires the existence of a potentially unstable low-level supply of moisture ...

David P. Rowell; James R. Milford

1993-06-01T23:59:59.000Z

486

Claw-free graphs and line graphs.  

E-Print Network (OSTI)

??The research of my dissertation is motivated by the conjecture ofThomassen that every 4-connected line graph is hamiltonian and by the conjecture ofTutte that every (more)

Shao, Yehong, 1976-

2005-01-01T23:59:59.000Z

487

On-line Condenser Fouling Monitor Development  

Science Conference Proceedings (OSTI)

This newly developed, innovative, on-line fouling monitor can continuously display the cleanliness factor of an operating condenser. The monitor facilitates optimization of cooling water treatment and condenser cleaning schedules.

1998-03-17T23:59:59.000Z

488

Electrical Transmission Line Diametrical Retention Mechanism  

DOE Patents (OSTI)

The invention is a mechanism for retaining an electrical transmission line. In one embodiment of the invention it is a system for retaining an electrical transmission line within downhole components. The invention allows a transmission line to be attached to the internal diameter of drilling components that have a substantially uniform drilling diameter. In accordance with one aspect of the invention, the system includes a plurality of downhole components, such as sections of pipe in a drill string, drill collars, heavy weight drill pipe, and jars. The system also includes a coaxial cable running between the first and second end of a drill pipe, the coaxial cable having a conductive tube and a conductive core within it. The invention allows the electrical transmission line to withstand the tension and compression of drill pipe during routine drilling cycles.

Hall, David R. (Provo, UT); Hall, Jr., H. Tracy (Provo, UT); Pixton, David (Lehi, UT); Dahlgren, Scott (Provo, UT); Sneddon, Cameron (Provo, UT); Briscoe, Michael (Lehi, UT); Fox, Joe (Spanish Fork, UT)

2006-01-03T23:59:59.000Z

489

Power line communications for smart grid applications  

Science Conference Proceedings (OSTI)

Power line communication, that is, using the electricity infrastructure for data transmission, is experiencing a renaissance in the context of Smart Grid. Smart Grid objectives include the integration of intermittent renewable energy sources into the ...

Lars Torsten Berger, Andreas Schwager, J. Joaqun Escudero-Garzs

2013-01-01T23:59:59.000Z

490

Design of the ILC RTML Extraction Lines  

SciTech Connect

The ILC [1] Damping Ring to the Main Linac beamline (RTML) contains three extraction lines (EL). Each EL can be used both for an emergency abort dumping of the beam and tune-up continual train-by-train extraction. Two of the extraction lines are located downstream of the first and second stages of the RTML bunch compressor, and must accept both compressed and uncompressed beam with energy spreads of 2.5% and 0.15%, respectively. In this paper we report on an optics design that allowed minimizing the length of the extraction lines while offsetting the beam dumps from the main line by the distance required for acceptable radiation levels in the service tunnel. The proposed extraction lines can accommodate beams with different energy spreads while at the same time providing the beam size acceptable for the aluminum dump window. The RTML incorporates three extraction lines, which can be used for either an emergency beam abort or for a train-by-train extraction. The first EL is located downstream of the Damping Ring extraction arc. The other two extraction lines are located downstream of each stage of the two-stage bunch compressor. The first extraction line (EL1) receives 5GeV beam with an 0.15% energy spread. The extraction line located downstream of the first stage of bunch compressor (ELBC1) receives both compressed and uncompressed beam, and therefore must accept beam with both 5 and 4.88GeV energy, and 0.15% and 2.5% energy spread, respectively. The extraction line located after the second stage of the bunch compressor (ELBC2) receives 15GeV beam with either 0.15 or 1.8% energy spread. Each of the three extraction lines is equipped with the 220kW aluminum ball dump, which corresponds to the power of the continuously dumped beam with 5GeV energy, i.e., the beam trains must be delivered to the ELBC2 dump at reduced repetition rate.

Seletskiy, S.; Tenenbaum, P.; Walz, D.; /SLAC; Solyak, N.; /Fermilab

2011-10-17T23:59:59.000Z

491

Multi-Agent Approach to Electrical Distribution Networks Control Sbastien Rumley*, Elvira Kgi*, Hugh Rudnick, Alain Germond*  

E-Print Network (OSTI)

distribution networks is proposed. Traditionally, the medium-voltage part of the electrical grid is operatedMulti-Agent Approach to Electrical Distribution Networks Control Sébastien Rumley*, Elvira Kägi (i.e. bulk distribution) is too complex. Furthermore, the great amount of data to be handled on- line

Catholic University of Chile (Universidad Católica de Chile)

492

500-kV Transmission Line Design  

Science Conference Proceedings (OSTI)

The design of an extrahigh-voltage (EHV) transmission line involves an integrated analysis and comparison of influencing factors to develop a structure configuration and conductor/shieldwire system that will provide safe, reliable, and economic service. Many of the parameters in design have varied impacts on the performance characteristics of a transmission line: safety, reliability, capital cost, and lifetime cost. The interdependencies are many and technical in nature. Having a solid knowledge of the p...

2011-02-04T23:59:59.000Z

493

Electrical Effects of HVDC Transmission Lines--2012  

Science Conference Proceedings (OSTI)

Electrical effects may constrain the design of prospective high-voltage direct current (HVDC) lines, when either alone or sharing the same structures with high-voltage alternating current (HVAC) lines. In 2012, the Electric Power Research Institute (EPRI) research focused on electric field and ion density at ground level. The ultimate goal is to calculate with confidence these electrical effects. The work built on research previously performed, including pioneering research performed at EPRIs ...

2012-12-12T23:59:59.000Z

494

Electrical Effects of HVDC Transmission Lines  

Science Conference Proceedings (OSTI)

Electrical effects can constrain the design of prospective high-voltage direct current (HVDC) lines operating either alone or sharing the same rights of way structures with high-voltage alternate current (HVAC) lines. In 2013, the Electric Power Research Institute (EPRI) research on HVDC electrical effects focused on electric field and ion density at ground level. The ultimate goal of the project is to calculate with confidence these electrical effects. The algorithms on which the software currently ...

2013-11-08T23:59:59.000Z

495

Perspective: Power Lines and Motor Vehicle Electronics  

Science Conference Proceedings (OSTI)

Recent news reports have suggested that the operation of automotive electronic systems (including sudden acceleration) could be affected by the electric and magnetic fields associated with power transmission lines. Based on electromagnetic fundamentals and knowledge of the levels of electric fields, magnetic fields and RF fields from transmission lines, one can evaluate the possibility of an interaction between these exposures and the electronic systems within automobiles, both electric and conventional.

2010-06-06T23:59:59.000Z

496

Two-Cluster Distribution Functions  

NLE Websites -- All DOE Office Websites (Extended Search)

Cluster Distribution Functions New New: Green's function Monte Carlo results We have computed momentum distributions and configuration space overlaps in a number of systems,...

497

Impact of Increasing Distributed Wind Power and Wind Turbine Siting on Rural Distribution Feeder Voltage Profiles: Preprint  

DOE Green Energy (OSTI)

Many favorable wind energy resources in North America are located in remote locations without direct access to the transmission grid. Building transmission lines to connect remotely-located wind power plants to large load centers has become a barrier to increasing wind power penetration in North America. By connecting utility-sized megawatt-scale wind turbines to the distribution system, wind power supplied to consumers could be increased greatly. However, the impact of including megawatt-scale wind turbines on distribution feeders needs to be studied. The work presented here examined the impact that siting and power output of megawatt-scale wind turbines have on distribution feeder voltage. This is the start of work to present a general guide to megawatt-scale wind turbine impact on the distribution feeder and finding the amount of wind power that can be added without adversely impacting the distribution feeder operation, reliability, and power quality.

Allen, A.; Zhang, Y. C.; Hodge, B. M.

2013-09-01T23:59:59.000Z

498

Ranking distributed probabilistic data  

Science Conference Proceedings (OSTI)

Ranking queries are essential tools to process large amounts of probabilistic data that encode exponentially many possible deterministic instances. In many applications where uncertainty and fuzzy information arise, data are collected from multiple sources ... Keywords: distributed query processing, probabilistic data, ranking queries, top-k, uncertain databases

Feifei Li; Ke Yi; Jeffrey Jestes

2009-06-01T23:59:59.000Z

499

Enabling distributed petascale science.  

SciTech Connect

Petascale science is an end-to-end endeavour, involving not only the creation of massive datasets at supercomputers or experimental facilities, but the subsequent analysis of that data by a user community that may be distributed across many laboratories and universities. The new SciDAC Center for Enabling Distributed Petascale Science (CEDPS) is developing tools to support this end-to-end process. These tools include data placement services for the reliable, high-performance, secure, and policy-driven placement of data within a distributed science environment; tools and techniques for the construction, operation, and provisioning of scalable science services; and tools for the detection and diagnosis of failures in end-to-end data placement and distributed application hosting configurations. In each area, we build on a strong base of existing technology and have made useful progress in the first year of the project. For example, we have recently achieved order-of-magnitude improvements in transfer times (for lots of small files) and implemented asynchronous data staging capabilities; demonstrated dynamic deployment of complex application stacks for the STAR experiment; and designed and deployed end-to-end troubleshooting services. We look forward to working with SciDAC application and technology projects to realize the promise of petascale science.

Baranovski, A.; Bharathi, S.; Bresnahan, J.; chervenak, A.; Foster, I.; Fraser, D.; Freeman, T.; Gunter, D.; Jackson, K.; Keahey, K.; Kesselman, C.; Konerding, D. E.; Leroy, N.; Link, M.; Livny, M.; Miller, N.; Miller, R.; Oleynik, G.; Pearlman, L.; Schopf, J. M.; Schuler, R.; Tierney, B.; Mathematics and Computer Science; FNL; Univ. of Southern California; Univ. of Chicago; LBNL; Univ. of Wisconsin

2007-01-01T23:59:59.000Z

500

Online distributed sensor selection  

Science Conference Proceedings (OSTI)

A key problem in sensor networks is to decide which sensors to query when, in order to obtain the most useful information (e.g., for performing accurate prediction), subject to constraints (e.g., on power and bandwidth). In many applications the utility ... Keywords: approximation algorithms, distributed multiarmed bandit algorithms, sensor networks, submodular optimization

Daniel Golovin; Matthew Faulkner; Andreas Krause

2010-04-01T23:59:59.000Z